Names starting with J: Ja to Jacoby
300 first names from SSA's national file, part 1 of 28 of the J directory. 108 link to their full record; for the other 192, the row is NameAlmanac's record: the babies given the name since 1880, the years SSA recorded it (5 or more babies of one sex in a year), its peak year and its 2025 births.
Names: SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data. SSA lists a name in a year only when 5 or more babies of one sex got it.
Ja to Jacoby
| Name | Given to | Babies since 1880 | On record | Peak year | Babies in 2025 |
|---|---|---|---|---|---|
| Ja | Both, 31% girls | 441 | 1957-2025, 41 years | 2000 | 6 |
| Jaabir | Boys | 5 | 2006, 1 year | 2006 | under 5 |
| Jaad | Boys | 59 | 2014-2024, 9 years | 2016 | under 5 |
| Jaada | Girls | 5 | 2002, 1 year | 2002 | under 5 |
| Jaade | Girls | 5 | 2002, 1 year | 2002 | under 5 |
| Jaaden | Boys | 33 | 2003-2012, 6 years | 2007 | under 5 |
| Jaafar | Boys | 61 | 1993-2023, 10 years | 1993 | under 5 |
| Jaair | Boys | 7 | 2021, 1 year | 2021 | under 5 |
| Jaaire | Boys | 61 | 2018-2025, 7 years | 2024 | 6 |
| Jaala | Girls | 363 | 1976-2019, 35 years | 2004 | under 5 |
| Jaalah | Girls | 42 | 1991-2016, 7 years | 2016 | under 5 |
| Jaalen | Boys | 34 | 1994-2002, 6 years | 2001 | under 5 |
| Jaali | Boys | 17 | 2003-2022, 3 years | 2003 | under 5 |
| Jaaliyah | Girls | 411 | 1995-2025, 30 years | 2012 | 10 |
| Jaalyn | Both, 45% girls | 11 | 2002, 1 year | 2002 | under 5 |
| Jaamal | Boys | 81 | 1978-1990, 11 years | 1982 | under 5 |
| Jaan | Boys | 151 | 1999-2025, 21 years | 2006 | 5 |
| Jaana | Girls | 110 | 1979-2025, 17 years | 2007 | 8 |
| Jaanai | Girls | 134 | 2000-2025, 18 years | 2014 | 5 |
| Jaanna | Girls | 17 | 2007-2016, 3 years | 2007 | under 5 |
| Jaanvi | Girls | 291 | 2003-2025, 20 years | 2022 | 22 |
| Jaanvika | Girls | 5 | 2022, 1 year | 2022 | under 5 |
| Jaap | Girls | 10 | 2022-2025, 2 years | 2022 | 5 |
| Jaaron | Boys | 336 | 1978-2025, 36 years | 2000 | 5 |
| Jaasia | Girls | 118 | 2001-2025, 16 years | 2005 | 5 |
| Jaasiel | Boys | 571 | 1990-2025, 31 years | 2013 | 14 |
| Jaasir | Boys | 14 | 2010-2013, 2 years | 2010 | under 5 |
| Jaason | Boys | 22 | 1980-1996, 3 years | 1995 | under 5 |
| Jaasritha | Girls | 29 | 2014-2018, 5 years | 2016 | under 5 |
| Jaavon | Boys | 5 | 1999, 1 year | 1999 | under 5 |
| Jaazaniah | Both, 80% girls | 25 | 2007-2017, 5 years | 2007 | under 5 |
| Jaaziah | Boys | 227 | 2002-2024, 18 years | 2017 | under 5 |
| Jaaziel | Boys | 541 | 1996-2025, 29 years | 2022 | 20 |
| Jab | Boys | 5 | 1919, 1 year | 1919 | under 5 |
| Jabaar | Boys | 15 | 1973-1986, 3 years | 1973 | under 5 |
| Jabahri | Boys | 9 | 2003, 1 year | 2003 | under 5 |
| Jabal | Boys | 77 | 2019-2025, 7 years | 2025 | 15 |
| Jabali | Boys | 56 | 1973-2025, 7 years | 2018 | 6 |
| Jabar | Boys | 450 | 1971-2025, 43 years | 1977 | 6 |
| Jabare | Boys | 20 | 1998-2023, 4 years | 1998 | under 5 |
| Jabaree | Boys | 124 | 1991-2011, 14 years | 2005 | under 5 |
| Jabari | Boys | 9,768 | 1971-2025, 55 years | 2006 | 172 |
| Jabarie | Boys | 236 | 1989-2022, 22 years | 2006 | under 5 |
| Jabarion | Boys | 9 | 2006, 1 year | 2006 | under 5 |
| Jabaris | Boys | 34 | 1986-1993, 6 years | 1987 | under 5 |
| Jabarius | Boys | 7 | 2006, 1 year | 2006 | under 5 |
| Jabarr | Boys | 11 | 1972-1973, 2 years | 1973 | under 5 |
| Jabarri | Boys | 336 | 1985-2025, 36 years | 2007 | 11 |
| Jabarrie | Boys | 5 | 2005, 1 year | 2005 | under 5 |
| Jabary | Boys | 11 | 2006-2007, 2 years | 2006 | under 5 |
| Jabbaar | Boys | 5 | 1980, 1 year | 1980 | under 5 |
| Jabbar | Boys | 752 | 1972-2025, 53 years | 1972 | 6 |
| Jabdiel | Boys | 48 | 2006-2024, 9 years | 2006 | under 5 |
| Jabe | Boys | 242 | 1884-2011, 37 years | 1983 | under 5 |
| Jabel | Boys | 25 | 2007-2024, 5 years | 2007 | under 5 |
| Jabella | Girls | 7 | 2017, 1 year | 2017 | under 5 |
| Jaben | Boys | 69 | 1977-2013, 11 years | 2006 | under 5 |
| Jaber | Boys | 151 | 1982-2025, 20 years | 2024 | 8 |
| Jabes | Boys | 210 | 2001-2025, 24 years | 2003 | 8 |
| Jabez | Boys | 1,134 | 1880-2025, 52 years | 2002 | 17 |
| Jabian | Boys | 10 | 2007-2009, 2 years | 2007 | under 5 |
| Jabien | Boys | 8 | 2007, 1 year | 2007 | under 5 |
| Jabier | Boys | 336 | 1949-2010, 46 years | 1989 | under 5 |
| Jabin | Boys | 626 | 1966-2025, 45 years | 2001 | 5 |
| Jabina | Girls | 7 | 1975, 1 year | 1975 | under 5 |
| Jabir | Boys | 391 | 1977-2025, 37 years | 2019 | 15 |
| Jabo | Boys | 11 | 1914-1919, 2 years | 1919 | under 5 |
| Jaboa | Girls | 15 | 1990-1991, 2 years | 1990 | under 5 |
| Jabob | Boys | 11 | 2006-2007, 2 years | 2006 | under 5 |
| Jabon | Boys | 6 | 1979, 1 year | 1979 | under 5 |
| Jabora | Girls | 5 | 1990, 1 year | 1990 | under 5 |
| Jaboree | Boys | 12 | 2003-2005, 2 years | 2005 | under 5 |
| Jabori | Boys | 175 | 1982-2019, 18 years | 2006 | under 5 |
| Jaborie | Boys | 11 | 2006-2007, 2 years | 2007 | under 5 |
| Jaboris | Boys | 28 | 1983-1994, 5 years | 1990 | under 5 |
| Jabr | Boys | 6 | 2022, 1 year | 2022 | under 5 |
| Jabrae | Boys | 5 | 2009, 1 year | 2009 | under 5 |
| Jabrail | Boys | 12 | 1994-2013, 2 years | 1994 | under 5 |
| Jabrandon | Boys | 5 | 2007, 1 year | 2007 | under 5 |
| Jabraun | Boys | 6 | 1999, 1 year | 1999 | under 5 |
| Jabrayah | Girls | 16 | 2012-2019, 3 years | 2012 | under 5 |
| Jabrayden | Boys | 5 | 2012, 1 year | 2012 | under 5 |
| Jabraylen | Boys | 36 | 2011-2023, 5 years | 2012 | under 5 |
| Jabraylin | Boys | 8 | 2013, 1 year | 2013 | under 5 |
| Jabraylon | Boys | 52 | 1997-2023, 9 years | 2012 | under 5 |
| Jabre | Boys | 141 | 1982-2017, 17 years | 1993 | under 5 |
| Jabrea | Girls | 310 | 1991-2022, 26 years | 1995 | under 5 |
| Jabree | Both, 17% girls | 411 | 1988-2024, 30 years | 1997 | under 5 |
| Jabreel | Boys | 111 | 1991-2024, 18 years | 1999 | under 5 |
| Jabreena | Girls | 9 | 1998, 1 year | 1998 | under 5 |
| Jabreia | Girls | 31 | 1996-2008, 5 years | 1998 | under 5 |
| Jabrel | Boys | 5 | 2001, 1 year | 2001 | under 5 |
| Jabrell | Boys | 35 | 1993-2010, 6 years | 1993 | under 5 |
| Jabreon | Boys | 10 | 2006-2010, 2 years | 2006 | under 5 |
| Jabreya | Girls | 5 | 1999, 1 year | 1999 | under 5 |
| Jabri | Boys | 255 | 1982-2025, 30 years | 1992 | 6 |
| Jabria | Girls | 1,158 | 1990-2025, 36 years | 1995 | 9 |
| Jabriah | Girls | 33 | 1995-2011, 6 years | 2011 | under 5 |
| Jabrian | Boys | 23 | 2003-2009, 4 years | 2003 | under 5 |
| Jabriel | Boys | 1,023 | 1979-2025, 46 years | 2009 | 13 |
| Jabrielle | Girls | 11 | 2012-2013, 2 years | 2013 | under 5 |
| Jabrien | Boys | 16 | 1998-2008, 3 years | 2004 | under 5 |
| Jabril | Boys | 1,675 | 1979-2025, 43 years | 1993 | 23 |
| Jabrill | Boys | 29 | 1992-2021, 5 years | 2017 | under 5 |
| Jabrina | Girls | 13 | 1993-1994, 2 years | 1993 | under 5 |
| Jabrion | Boys | 11 | 2002-2009, 2 years | 2009 | under 5 |
| Jabriya | Girls | 15 | 2007-2018, 3 years | 2007 | under 5 |
| Jabriyah | Girls | 13 | 2005-2010, 2 years | 2005 | under 5 |
| Jabron | Boys | 152 | 2000-2021, 14 years | 2009 | under 5 |
| Jabryan | Boys | 18 | 2004-2009, 3 years | 2008 | under 5 |
| Jabryson | Boys | 5 | 2018, 1 year | 2018 | under 5 |
| Jabulani | Boys | 28 | 1975-2005, 5 years | 1978 | under 5 |
| Jabus | Boys | 5 | 1914, 1 year | 1914 | under 5 |
| Jac | Boys | 615 | 1915-2025, 67 years | 1956 | 15 |
| Jacab | Boys | 10 | 1990-1996, 2 years | 1990 | under 5 |
| Jacaden | Boys | 83 | 2007-2020, 11 years | 2010 | under 5 |
| Jacaerys | Boys | 48 | 2023-2025, 3 years | 2025 | 22 |
| Jacai | Boys | 167 | 2006-2025, 18 years | 2012 | 8 |
| Jacaiden | Boys | 33 | 2012-2020, 6 years | 2013 | under 5 |
| Jacaius | Boys | 17 | 2025, 1 year | 2025 | 17 |
| Jacaleb | Boys | 37 | 2004-2021, 6 years | 2007 | under 5 |
| Jacalyn | Girls | 5,185 | 1937-2023, 76 years | 1954 | under 5 |
| Jacalynn | Girls | 100 | 1952-2010, 16 years | 1955 | under 5 |
| Jacameron | Boys | 27 | 1999-2012, 5 years | 2008 | under 5 |
| Jacan | Boys | 15 | 1998-2007, 3 years | 1998 | under 5 |
| Jacara | Girls | 417 | 1984-2017, 32 years | 1998 | under 5 |
| Jacaranda | Girls | 5 | 1988, 1 year | 1988 | under 5 |
| Jacare | Boys | 6 | 2003, 1 year | 2003 | under 5 |
| Jacaree | Boys | 21 | 2006-2014, 3 years | 2006 | under 5 |
| Jacarey | Boys | 6 | 2004, 1 year | 2004 | under 5 |
| Jacari | Boys | 2,935 | 1983-2025, 40 years | 2023 | 100 |
| Jacaria | Girls | 79 | 1998-2013, 11 years | 2004 | under 5 |
| Jacarie | Boys | 70 | 2003-2022, 10 years | 2008 | under 5 |
| Jacarii | Boys | 19 | 2016-2025, 3 years | 2023 | 6 |
| Jacarion | Boys | 56 | 2005-2020, 9 years | 2005 | under 5 |
| Jacarious | Boys | 34 | 2000-2008, 6 years | 2006 | under 5 |
| Jacarius | Boys | 101 | 1995-2011, 13 years | 2002 | under 5 |
| Jacarla | Girls | 5 | 2010, 1 year | 2010 | under 5 |
| Jacarr | Boys | 5 | 2002, 1 year | 2002 | under 5 |
| Jacarra | Girls | 95 | 1988-2008, 11 years | 1998 | under 5 |
| Jacarri | Boys | 513 | 1989-2025, 34 years | 2022 | 25 |
| Jacarria | Girls | 5 | 1999, 1 year | 1999 | under 5 |
| Jacarter | Boys | 20 | 2014-2017, 3 years | 2015 | under 5 |
| Jacary | Boys | 21 | 2004-2012, 4 years | 2008 | under 5 |
| Jacaryous | Boys | 5 | 2007, 1 year | 2007 | under 5 |
| Jacauri | Boys | 5 | 2010, 1 year | 2010 | under 5 |
| Jacaury | Boys | 5 | 2010, 1 year | 2010 | under 5 |
| Jacavion | Boys | 5 | 2013, 1 year | 2013 | under 5 |
| Jacayden | Boys | 58 | 2009-2017, 8 years | 2013 | under 5 |
| Jacayla | Girls | 108 | 1995-2019, 15 years | 2008 | under 5 |
| Jacbo | Boys | 5 | 1990, 1 year | 1990 | under 5 |
| Jaccari | Boys | 11 | 2008-2013, 2 years | 2008 | under 5 |
| Jacci | Girls | 242 | 1948-2000, 31 years | 1957 | under 5 |
| Jaccob | Boys | 629 | 1981-2020, 37 years | 1994 | under 5 |
| Jace | Boys | 92,412 | 1936-2025, 77 years | 2013 | 3,091 |
| Jacee | Girls | 1,653 | 1975-2025, 49 years | 2008 | 10 |
| Jaceion | Boys | 520 | 2012-2025, 14 years | 2016 | 23 |
| Jaceir | Boys | 5 | 2024, 1 year | 2024 | under 5 |
| Jacek | Boys | 532 | 1965-2025, 41 years | 2013 | 5 |
| Jacelin | Girls | 24 | 1994-2011, 4 years | 2001 | under 5 |
| Jaceline | Girls | 5 | 1990, 1 year | 1990 | under 5 |
| Jacella | Girls | 6 | 2007, 1 year | 2007 | under 5 |
| Jacelle | Girls | 39 | 2004-2013, 7 years | 2004 | under 5 |
| Jacely | Girls | 10 | 2005-2017, 2 years | 2005 | under 5 |
| Jacelyn | Girls | 2,988 | 1949-2025, 71 years | 2013 | 26 |
| Jacelynn | Girls | 959 | 1995-2025, 30 years | 2015 | 25 |
| Jacen | Boys | 2,480 | 1970-2025, 53 years | 2013 | 30 |
| Jacenda | Girls | 10 | 1996-2004, 2 years | 1996 | under 5 |
| Jacenia | Girls | 5 | 2012, 1 year | 2012 | under 5 |
| Jacent | Boys | 12 | 1970-1974, 2 years | 1970 | under 5 |
| Jacenta | Girls | 44 | 1978-1988, 8 years | 1981 | under 5 |
| Jaceon | Boys | 1,195 | 2005-2025, 21 years | 2014 | 35 |
| Jacere | Boys | 144 | 2005-2025, 17 years | 2024 | 9 |
| Jaceson | Boys | 23 | 2013-2019, 4 years | 2013 | under 5 |
| Jacetin | Boys | 6 | 2013, 1 year | 2013 | under 5 |
| Jaceton | Boys | 15 | 2007-2014, 3 years | 2007 | under 5 |
| Jacey | Girls | 8,531 | 1965-2025, 58 years | 2006 | 72 |
| Jaceyon | Boys | 598 | 2013-2025, 13 years | 2014 | 28 |
| Jacgueline | Girls | 6 | 1961, 1 year | 1961 | under 5 |
| Jachai | Boys | 373 | 1996-2025, 27 years | 1997 | 5 |
| Jachari | Boys | 5 | 2022, 1 year | 2022 | under 5 |
| Jache | Girls | 6 | 1998, 1 year | 1998 | under 5 |
| Jachelle | Girls | 120 | 1980-2013, 18 years | 1996 | under 5 |
| Jachin | Boys | 493 | 1975-2025, 43 years | 2011 | 8 |
| Jachob | Boys | 146 | 1988-2008, 16 years | 2000 | under 5 |
| Jaci | Girls | 5,154 | 1934-2025, 79 years | 2005 | 58 |
| Jacia | Girls | 98 | 1993-2016, 14 years | 1999 | under 5 |
| Jaciah | Girls | 5 | 2007, 1 year | 2007 | under 5 |
| Jacian | Boys | 73 | 2002-2024, 11 years | 2003 | under 5 |
| Jaciana | Girls | 42 | 2002-2018, 6 years | 2018 | under 5 |
| Jacianna | Girls | 18 | 2008-2016, 3 years | 2014 | under 5 |
| Jacie | Girls | 4,235 | 1920-2025, 69 years | 2005 | 51 |
| Jaciel | Boys | 1,075 | 1990-2025, 35 years | 2024 | 64 |
| Jacieon | Boys | 109 | 2013-2025, 11 years | 2023 | 11 |
| Jacier | Boys | 130 | 2003-2025, 18 years | 2024 | 12 |
| Jaciere | Boys | 18 | 2018-2024, 3 years | 2024 | under 5 |
| Jacilyn | Girls | 386 | 1974-2021, 37 years | 1984 | under 5 |
| Jacilynn | Girls | 10 | 2001-2020, 2 years | 2001 | under 5 |
| Jacin | Boys | 25 | 1976-2017, 4 years | 1978 | under 5 |
| Jacina | Girls | 16 | 1980-2002, 3 years | 1980 | under 5 |
| Jacinda | Girls | 4,252 | 1962-2025, 64 years | 1996 | 9 |
| Jacine | Girls | 5 | 1970, 1 year | 1970 | under 5 |
| Jacinta | Girls | 3,546 | 1909-2025, 108 years | 1982 | 32 |
| Jacinth | Both, 43% girls | 28 | 1989-2019, 4 years | 1999 | under 5 |
| Jacintha | Girls | 33 | 1952-1985, 6 years | 1981 | under 5 |
| Jacinto | Boys | 2,958 | 1909-2025, 115 years | 2024 | 44 |
| Jacion | Boys | 476 | 2007-2025, 16 years | 2013 | 7 |
| Jacione | Boys | 5 | 2014, 1 year | 2014 | under 5 |
| Jacionna | Girls | 8 | 2013, 1 year | 2013 | under 5 |
| Jacir | Boys | 57 | 2008-2025, 8 years | 2024 | 6 |
| Jaciya | Girls | 5 | 2010, 1 year | 2010 | under 5 |
| Jaciyah | Girls | 16 | 2008-2011, 3 years | 2011 | under 5 |
| Jaciyon | Boys | 5 | 2013, 1 year | 2013 | under 5 |
| Jack | Boys | 759,677 | 1880-2025, 146 years | 1927 | 8,754 |
| Jackalin | Girls | 5 | 2001, 1 year | 2001 | under 5 |
| Jackaline | Girls | 39 | 1934-1982, 7 years | 1934 | under 5 |
| Jackalyn | Girls | 586 | 1942-2014, 58 years | 2006 | under 5 |
| Jackalynn | Girls | 117 | 1953-2010, 17 years | 2001 | under 5 |
| Jacke | Boys | 5 | 1934, 1 year | 1934 | under 5 |
| Jackee | Girls | 322 | 1949-2006, 22 years | 1988 | under 5 |
| Jackelin | Girls | 1,404 | 1971-2025, 46 years | 2008 | 7 |
| Jackeline | Girls | 6,534 | 1938-2025, 67 years | 2000 | 30 |
| Jackelinne | Girls | 22 | 2003-2009, 4 years | 2006 | under 5 |
| Jackelyn | Girls | 3,896 | 1943-2025, 68 years | 2000 | 6 |
| Jackelyne | Girls | 423 | 1985-2017, 31 years | 2000 | under 5 |
| Jackelynn | Girls | 121 | 1988-2014, 18 years | 2011 | under 5 |
| Jackey | Boys | 726 | 1930-2007, 58 years | 1956 | under 5 |
| Jackhenry | Boys | 41 | 1997-2014, 7 years | 2012 | under 5 |
| Jacki | Girls | 3,523 | 1935-2024, 66 years | 1961 | under 5 |
| Jackia | Girls | 6 | 2000, 1 year | 2000 | under 5 |
| Jackie | Both, 54% girls | 170,153 | 1899-2025, 127 years | 1961 | 148 |
| Jackielyn | Girls | 15 | 1984-2000, 3 years | 1984 | under 5 |
| Jackielynn | Girls | 5 | 2018, 1 year | 2018 | under 5 |
| Jackilyn | Girls | 313 | 1951-2017, 33 years | 1989 | under 5 |
| Jackilynn | Girls | 16 | 1957-2011, 3 years | 1957 | under 5 |
| Jackjohn | Boys | 20 | 1925-1930, 3 years | 1926 | under 5 |
| Jackleen | Girls | 48 | 1983-1996, 8 years | 1984 | under 5 |
| Jacklen | Girls | 5 | 2002, 1 year | 2002 | under 5 |
| Jacklene | Girls | 33 | 1942-1990, 5 years | 1985 | under 5 |
| Jacklin | Girls | 890 | 1924-2013, 79 years | 1988 | under 5 |
| Jackline | Girls | 342 | 1937-2012, 48 years | 1962 | under 5 |
| Jacklon | Girls | 11 | 1960-1964, 2 years | 1964 | under 5 |
| Jacklyn | Girls | 17,002 | 1913-2025, 109 years | 1987 | 68 |
| Jacklyne | Girls | 108 | 1942-2009, 18 years | 1994 | under 5 |
| Jacklynn | Girls | 2,370 | 1937-2025, 86 years | 2010 | 32 |
| Jacklynne | Girls | 33 | 1992-2012, 6 years | 1993 | under 5 |
| Jackman | Boys | 86 | 2007-2023, 13 years | 2014 | under 5 |
| Jackob | Boys | 122 | 1992-2021, 19 years | 2000 | under 5 |
| Jackolyn | Girls | 154 | 1927-1990, 21 years | 1947 | under 5 |
| Jackquelin | Girls | 37 | 1954-2005, 7 years | 2000 | under 5 |
| Jackqueline | Girls | 1,375 | 1922-2011, 77 years | 1964 | under 5 |
| Jackquelyn | Girls | 259 | 1946-2006, 35 years | 1963 | under 5 |
| Jackqulin | Girls | 11 | 1954-1965, 2 years | 1965 | under 5 |
| Jackquline | Girls | 571 | 1931-1996, 44 years | 1964 | under 5 |
| Jackqulyn | Girls | 81 | 1946-1989, 13 years | 1964 | under 5 |
| Jacks | Boys | 69 | 2010-2024, 10 years | 2014 | under 5 |
| Jacksen | Boys | 620 | 1997-2025, 29 years | 2010 | 12 |
| Jacksin | Boys | 10 | 2009-2014, 2 years | 2009 | under 5 |
| Jackson | Boys | 297,998 | 1880-2025, 146 years | 2013 | 6,597 |
| Jacksonjames | Boys | 5 | 2017, 1 year | 2017 | under 5 |
| Jacksten | Boys | 5 | 2017, 1 year | 2017 | under 5 |
| Jackstin | Boys | 5 | 2018, 1 year | 2018 | under 5 |
| Jackston | Boys | 186 | 2009-2023, 15 years | 2017 | under 5 |
| Jacksyn | Both, 17% girls | 351 | 2002-2025, 22 years | 2012 | 11 |
| Jackthomas | Boys | 6 | 2006, 1 year | 2006 | under 5 |
| Jackueline | Girls | 5 | 1996, 1 year | 1996 | under 5 |
| Jacky | Both, 15% girls | 7,787 | 1925-2025, 101 years | 1953 | 11 |
| Jackye | Girls | 197 | 1920-1966, 29 years | 1951 | under 5 |
| Jacleen | Girls | 30 | 1984-1990, 4 years | 1985 | under 5 |
| Jaclene | Girls | 89 | 1983-1993, 9 years | 1985 | under 5 |
| Jaclin | Girls | 153 | 1976-2003, 20 years | 1986 | under 5 |
| Jaclyn | Girls | 49,734 | 1923-2025, 102 years | 1988 | 61 |
| Jaclyne | Girls | 151 | 1977-2002, 20 years | 1986 | under 5 |
| Jaclynn | Girls | 2,812 | 1941-2025, 81 years | 1990 | 16 |
| Jaclynne | Girls | 149 | 1953-2011, 20 years | 1985 | under 5 |
| Jaco | Boys | 62 | 2004-2024, 10 years | 2006 | under 5 |
| Jacob | Boys | 990,532 | 1880-2025, 146 years | 1998 | 6,152 |
| Jacoba | Girls | 296 | 1900-2023, 41 years | 1921 | under 5 |
| Jacobalexander | Boys | 14 | 1999-2012, 2 years | 1999 | under 5 |
| Jacobanthony | Boys | 31 | 2003-2014, 5 years | 2011 | under 5 |
| Jacobb | Boys | 245 | 1987-2012, 24 years | 1995 | under 5 |
| Jacobdaniel | Boys | 5 | 1996, 1 year | 1996 | under 5 |
| Jacobe | Boys | 1,300 | 1974-2025, 52 years | 2007 | 8 |
| Jacobee | Boys | 59 | 1991-2011, 9 years | 2000 | under 5 |
| Jacobey | Boys | 163 | 1981-2017, 22 years | 2003 | under 5 |
| Jacobi | Boys | 4,501 | 1973-2025, 53 years | 2008 | 60 |
| Jacobia | Both, 75% girls | 20 | 1988-1993, 4 years | 1988 | under 5 |
| Jacobian | Boys | 15 | 2004-2010, 3 years | 2004 | under 5 |
| Jacobie | Boys | 916 | 1975-2024, 45 years | 2009 | under 5 |
| Jacobjames | Boys | 5 | 2008, 1 year | 2008 | under 5 |
| Jacoblee | Boys | 6 | 1991, 1 year | 1991 | under 5 |
| Jacobmatthew | Boys | 10 | 2012-2021, 2 years | 2012 | under 5 |
| Jacobo | Boys | 3,486 | 1910-2025, 103 years | 2023 | 77 |
| Jacobrobert | Boys | 6 | 1999, 1 year | 1999 | under 5 |
| Jacobryan | Boys | 5 | 2004, 1 year | 2004 | under 5 |
| Jacobs | Boys | 81 | 1983-2019, 13 years | 2008 | under 5 |
| Jacobson | Boys | 35 | 1990-2019, 6 years | 2010 | under 5 |
| Jacobthomas | Boys | 5 | 2003, 1 year | 2003 | under 5 |
| Jacobus | Boys | 142 | 1979-2025, 25 years | 1997 | 5 |
| Jacoby | Boys | 11,281 | 1959-2025, 58 years | 2008 | 126 |
Order: alphabetical by the name as SSA spells it. Given to: the share of girls among all babies given the name.