Names starting with I: Iriana to Iskra
300 first names from SSA's national file, part 4 of 6 of the I directory. 114 link to their full record; for the other 186, 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.
Iriana to Iskra
| Name | Given to | Babies since 1880 | On record | Peak year | Babies in 2025 |
|---|---|---|---|---|---|
| Iriana | Girls | 632 | 1987-2025, 38 years | 2004 | 15 |
| Irianna | Girls | 215 | 2000-2024, 22 years | 2007 | under 5 |
| Iric | Boys | 21 | 1966-2006, 4 years | 2006 | under 5 |
| Iridessa | Girls | 231 | 2008-2025, 18 years | 2025 | 34 |
| Iridian | Girls | 588 | 1994-2006, 13 years | 1995 | under 5 |
| Iridiana | Girls | 159 | 1995-2025, 10 years | 1995 | 5 |
| Irie | Both, 81% girls | 3,382 | 1915-2025, 57 years | 2015 | 116 |
| Irieana | Girls | 11 | 2007-2008, 2 years | 2007 | under 5 |
| Iriee | Girls | 10 | 2014-2023, 2 years | 2014 | under 5 |
| Iriel | Girls | 138 | 1992-2025, 15 years | 2025 | 19 |
| Irielle | Girls | 81 | 1991-2025, 14 years | 2020 | 5 |
| Irihanna | Girls | 33 | 2008-2017, 5 years | 2008 | under 5 |
| Irin | Both, 50% girls | 10 | 1971-1987, 2 years | 1971 | under 5 |
| Irina | Girls | 2,425 | 1944-2025, 65 years | 2024 | 127 |
| Irine | Girls | 1,528 | 1895-1978, 68 years | 1922 | under 5 |
| Irineo | Boys | 339 | 1927-2018, 45 years | 1991 | under 5 |
| Irini | Girls | 69 | 1989-2021, 11 years | 2003 | under 5 |
| Iris | Girls | 102,320 | 1880-2025, 146 years | 2025 | 3,741 |
| Irisa | Girls | 193 | 1981-2025, 27 years | 2013 | 7 |
| Irisbeth | Girls | 16 | 2025, 1 year | 2025 | 16 |
| Irish | Girls | 1,608 | 1924-2025, 100 years | 1960 | 6 |
| Irisha | Girls | 80 | 1978-2006, 12 years | 1979 | under 5 |
| Irismae | Girls | 5 | 2024, 1 year | 2024 | under 5 |
| Irisrose | Girls | 6 | 2024, 1 year | 2024 | under 5 |
| Iriss | Girls | 5 | 2018, 1 year | 2018 | under 5 |
| Irissa | Girls | 61 | 1999-2021, 10 years | 2003 | under 5 |
| Iristine | Girls | 11 | 1951-1956, 2 years | 1951 | under 5 |
| Irit | Girls | 5 | 1970, 1 year | 1970 | under 5 |
| Irita | Girls | 25 | 1943-1951, 5 years | 1943 | under 5 |
| Iriyah | Girls | 5 | 2024, 1 year | 2024 | under 5 |
| Iriyana | Girls | 5 | 2004, 1 year | 2004 | under 5 |
| Iriz | Girls | 11 | 1989-1990, 2 years | 1990 | under 5 |
| Irja | Girls | 156 | 1910-1930, 15 years | 1918 | under 5 |
| Irl | Boys | 554 | 1887-1970, 57 years | 1921 | under 5 |
| Irlan | Boys | 26 | 2017-2024, 4 years | 2018 | under 5 |
| Irland | Boys | 6 | 1921, 1 year | 1921 | under 5 |
| Irlanda | Girls | 817 | 1979-2025, 38 years | 2012 | 22 |
| Irlene | Girls | 114 | 1899-1982, 19 years | 1922 | under 5 |
| Irline | Girls | 5 | 1925, 1 year | 1925 | under 5 |
| Irma | Girls | 74,021 | 1880-2025, 146 years | 1920 | 50 |
| Irmagene | Girls | 12 | 1929-1931, 2 years | 1929 | under 5 |
| Irmak | Girls | 6 | 2006, 1 year | 2006 | under 5 |
| Irmalee | Girls | 62 | 1925-1930, 5 years | 1925 | under 5 |
| Irmalinda | Girls | 48 | 1972-1978, 6 years | 1973 | under 5 |
| Irmani | Girls | 7 | 1999, 1 year | 1999 | under 5 |
| Irmgard | Girls | 469 | 1901-1962, 38 years | 1930 | under 5 |
| Irmias | Boys | 7 | 2019, 1 year | 2019 | under 5 |
| Irmina | Girls | 5 | 1915, 1 year | 1915 | under 5 |
| Irmuun | Boys | 10 | 2013-2024, 2 years | 2013 | under 5 |
| Irna | Girls | 25 | 1918-1960, 5 years | 1918 | under 5 |
| Iro | Boys | 13 | 2020-2024, 2 years | 2024 | under 5 |
| Iroh | Boys | 333 | 2011-2025, 14 years | 2024 | 32 |
| Iroha | Girls | 17 | 2008-2023, 3 years | 2008 | under 5 |
| Iron | Boys | 23 | 1978-2019, 4 years | 2005 | under 5 |
| Irona | Girls | 21 | 1920-1933, 4 years | 1920 | under 5 |
| Ironesha | Girls | 24 | 1993-1999, 4 years | 1993 | under 5 |
| Irsa | Girls | 39 | 2008-2025, 6 years | 2008 | 6 |
| Irshad | Boys | 5 | 1977, 1 year | 1977 | under 5 |
| Irtaza | Boys | 34 | 2017-2025, 4 years | 2017 | 9 |
| Iru | Boys | 6 | 2025, 1 year | 2025 | 6 |
| Irulan | Girls | 45 | 2003-2009, 4 years | 2003 | under 5 |
| Irv | Boys | 14 | 1952-1957, 2 years | 1957 | under 5 |
| Irva | Girls | 229 | 1899-1949, 29 years | 1899 | under 5 |
| Irvan | Boys | 264 | 1910-1987, 33 years | 1917 | under 5 |
| Irven | Boys | 1,086 | 1880-1996, 70 years | 1921 | under 5 |
| Irvin | Boys | 39,997 | 1880-2025, 146 years | 1923 | 80 |
| Irvina | Girls | 6 | 1954, 1 year | 1954 | under 5 |
| Irvine | Boys | 904 | 1883-2006, 79 years | 1920 | under 5 |
| Irving | Boys | 44,449 | 1880-2025, 146 years | 1918 | 90 |
| Irvyn | Boys | 17 | 1991-2008, 3 years | 2008 | under 5 |
| Irwin | Boys | 15,958 | 1880-2025, 146 years | 1925 | 13 |
| Irwing | Boys | 12 | 2003-2004, 2 years | 2003 | under 5 |
| Iry | Both, 44% girls | 27 | 1919-2020, 5 years | 2018 | under 5 |
| Irya | Girls | 5 | 2019, 1 year | 2019 | under 5 |
| Iryana | Girls | 17 | 2005-2007, 2 years | 2007 | under 5 |
| Iryanna | Girls | 16 | 2006-2013, 3 years | 2008 | under 5 |
| Iryna | Girls | 30 | 2014-2025, 5 years | 2014 | 7 |
| Irys | Girls | 218 | 1995-2025, 21 years | 2021 | 19 |
| Iryss | Girls | 15 | 2008-2021, 3 years | 2008 | under 5 |
| Irza | Girls | 6 | 2023, 1 year | 2023 | under 5 |
| Isa | Both, 52% girls | 6,575 | 1880-2025, 146 years | 2025 | 372 |
| Isaabella | Girls | 5 | 2009, 1 year | 2009 | under 5 |
| Isaac | Boys | 332,292 | 1880-2025, 146 years | 2007 | 5,963 |
| Isaack | Boys | 141 | 1996-2025, 18 years | 2004 | 5 |
| Isaah | Boys | 409 | 1921-2014, 22 years | 2001 | under 5 |
| Isaak | Boys | 4,271 | 1976-2025, 46 years | 2009 | 48 |
| Isaam | Boys | 11 | 2000-2017, 2 years | 2000 | under 5 |
| Isaaq | Boys | 17 | 2005-2018, 3 years | 2005 | under 5 |
| Isabeau | Girls | 476 | 1987-2025, 39 years | 2013 | 6 |
| Isabel | Girls | 133,977 | 1880-2025, 146 years | 2006 | 1,746 |
| Isabela | Girls | 12,698 | 1982-2025, 43 years | 2004 | 426 |
| Isabelah | Girls | 13 | 2010-2011, 2 years | 2010 | under 5 |
| Isabele | Girls | 181 | 1919-2023, 20 years | 2003 | under 5 |
| Isabeli | Girls | 5 | 2011, 1 year | 2011 | under 5 |
| Isabelita | Girls | 24 | 1960-1979, 4 years | 1973 | under 5 |
| Isabell | Girls | 15,279 | 1880-2025, 146 years | 2006 | 87 |
| Isabella | Girls | 417,454 | 1880-2025, 146 years | 2010 | 10,666 |
| Isabellagrace | Girls | 66 | 2004-2025, 10 years | 2015 | 5 |
| Isabellah | Girls | 359 | 2001-2024, 23 years | 2011 | under 5 |
| Isabellamaria | Girls | 5 | 2024, 1 year | 2024 | under 5 |
| Isabellamarie | Girls | 172 | 2002-2025, 20 years | 2010 | 6 |
| Isabellarose | Girls | 191 | 2002-2025, 22 years | 2010 | 5 |
| Isabellasophia | Girls | 5 | 2013, 1 year | 2013 | under 5 |
| Isabelle | Girls | 107,782 | 1880-2025, 146 years | 2007 | 1,825 |
| Isabellemarie | Girls | 5 | 2007, 1 year | 2007 | under 5 |
| Isabellia | Girls | 10 | 2004-2005, 2 years | 2004 | under 5 |
| Isabelly | Girls | 142 | 2006-2025, 16 years | 2007 | 6 |
| Isabelo | Boys | 16 | 1963-1970, 3 years | 1963 | under 5 |
| Isabeth | Girls | 5 | 1998, 1 year | 1998 | under 5 |
| Isabeya | Girls | 5 | 2013, 1 year | 2013 | under 5 |
| Isable | Girls | 5 | 1920, 1 year | 1920 | under 5 |
| Isac | Boys | 3,203 | 1884-2025, 102 years | 2006 | 22 |
| Isacar | Boys | 5 | 2024, 1 year | 2024 | under 5 |
| Isacc | Boys | 1,962 | 1923-2025, 65 years | 2003 | 10 |
| Isack | Boys | 185 | 1997-2022, 21 years | 2004 | under 5 |
| Isador | Boys | 182 | 1892-2024, 22 years | 1915 | under 5 |
| Isadora | Girls | 4,668 | 1880-2025, 128 years | 2024 | 177 |
| Isadore | Boys | 5,909 | 1880-2025, 143 years | 1916 | 15 |
| Isael | Boys | 3,164 | 1978-2025, 44 years | 2024 | 231 |
| Isagani | Boys | 6 | 2017, 1 year | 2017 | under 5 |
| Isah | Both, 12% girls | 41 | 1920-2007, 6 years | 2007 | under 5 |
| Isaha | Boys | 53 | 1995-2008, 8 years | 2003 | under 5 |
| Isahbella | Girls | 5 | 2010, 1 year | 2010 | under 5 |
| Isahi | Boys | 177 | 1999-2025, 22 years | 2006 | 5 |
| Isahia | Boys | 122 | 1996-2014, 16 years | 2007 | under 5 |
| Isahiah | Boys | 5 | 1999, 1 year | 1999 | under 5 |
| Isahias | Boys | 16 | 2004-2016, 3 years | 2004 | under 5 |
| Isahn | Boys | 5 | 2024, 1 year | 2024 | under 5 |
| Isai | Boys | 7,385 | 1966-2025, 53 years | 2007 | 197 |
| Isaia | Boys | 480 | 1985-2025, 34 years | 2007 | 7 |
| Isaiah | Boys | 254,710 | 1880-2025, 146 years | 2006 | 5,273 |
| Isaiaha | Boys | 13 | 1999-2004, 2 years | 1999 | under 5 |
| Isaiahmichael | Boys | 5 | 2005, 1 year | 2005 | under 5 |
| Isaiahs | Boys | 176 | 1998-2025, 21 years | 2012 | 5 |
| Isaian | Boys | 10 | 2001-2015, 2 years | 2001 | under 5 |
| Isaias | Boys | 18,644 | 1915-2025, 108 years | 2025 | 755 |
| Isaic | Boys | 193 | 1995-2017, 21 years | 2008 | under 5 |
| Isaid | Boys | 146 | 2003-2023, 17 years | 2017 | under 5 |
| Isaih | Boys | 1,510 | 1894-2025, 65 years | 1999 | 7 |
| Isaiha | Boys | 645 | 1988-2025, 32 years | 1997 | 5 |
| Isaihas | Boys | 6 | 2001, 1 year | 2001 | under 5 |
| Isain | Boys | 11 | 1992-1994, 2 years | 1992 | under 5 |
| Isair | Boys | 101 | 2004-2025, 16 years | 2020 | 5 |
| Isaira | Girls | 11 | 2001-2008, 2 years | 2001 | under 5 |
| Isairis | Girls | 5 | 2005, 1 year | 2005 | under 5 |
| Isais | Boys | 208 | 1980-2025, 27 years | 2009 | 7 |
| Isaish | Boys | 86 | 1987-2009, 14 years | 2002 | under 5 |
| Isaiyah | Boys | 144 | 2002-2025, 16 years | 2012 | 9 |
| Isajah | Boys | 5 | 2000, 1 year | 2000 | under 5 |
| Isak | Boys | 1,107 | 1979-2025, 43 years | 2004 | 38 |
| Isal | Girls | 7 | 1895, 1 year | 1895 | under 5 |
| Isalei | Girls | 5 | 2006, 1 year | 2006 | under 5 |
| Isalena | Girls | 5 | 2014, 1 year | 2014 | under 5 |
| Isalia | Girls | 24 | 2016-2024, 4 years | 2024 | under 5 |
| Isaliyah | Girls | 23 | 2024-2025, 2 years | 2024 | 11 |
| Isaly | Girls | 169 | 1998-2022, 22 years | 2020 | under 5 |
| Isalyn | Girls | 5 | 2025, 1 year | 2025 | 5 |
| Isam | Boys | 299 | 1880-2025, 46 years | 1998 | 7 |
| Isamar | Girls | 2,528 | 1990-2025, 36 years | 1990 | 47 |
| Isamara | Girls | 56 | 1990-2025, 8 years | 1990 | 5 |
| Isamari | Girls | 37 | 1990-2023, 7 years | 2006 | under 5 |
| Isamarie | Girls | 16 | 1990-2012, 3 years | 1990 | under 5 |
| Isamary | Girls | 34 | 1991-2015, 6 years | 2004 | under 5 |
| Isamel | Boys | 6 | 1981, 1 year | 1981 | under 5 |
| Isami | Boys | 136 | 1914-1929, 16 years | 1916 | under 5 |
| Isamu | Boys | 562 | 1912-2023, 33 years | 1922 | under 5 |
| Isan | Boys | 74 | 2009-2025, 10 years | 2024 | 10 |
| Isana | Girls | 53 | 2009-2025, 8 years | 2022 | 8 |
| Isander | Boys | 38 | 2006-2025, 5 years | 2025 | 11 |
| Isandro | Boys | 114 | 2006-2025, 14 years | 2025 | 22 |
| Isani | Girls | 8 | 2021, 1 year | 2021 | under 5 |
| Isao | Boys | 246 | 1915-2016, 23 years | 1925 | under 5 |
| Isaque | Boys | 10 | 2008-2022, 2 years | 2008 | under 5 |
| Isara | Girls | 13 | 2004-2018, 2 years | 2018 | under 5 |
| Isarael | Boys | 5 | 1989, 1 year | 1989 | under 5 |
| Isarel | Boys | 15 | 1983-2007, 3 years | 1983 | under 5 |
| Isarely | Girls | 6 | 2011, 1 year | 2011 | under 5 |
| Isata | Girls | 56 | 2000-2025, 10 years | 2005 | 5 |
| Isatou | Girls | 335 | 1991-2025, 32 years | 2003 | 9 |
| Isatu | Girls | 184 | 1993-2022, 24 years | 2002 | under 5 |
| Isau | Boys | 15 | 2002-2018, 3 years | 2002 | under 5 |
| Isaul | Boys | 163 | 1979-2023, 24 years | 1988 | under 5 |
| Isaura | Girls | 1,520 | 1916-2025, 83 years | 2007 | 14 |
| Isauro | Boys | 351 | 1922-2025, 49 years | 1989 | 6 |
| Isavel | Girls | 48 | 1980-2010, 8 years | 2000 | under 5 |
| Isavela | Girls | 11 | 2008-2010, 2 years | 2010 | under 5 |
| Isavella | Girls | 26 | 2007-2022, 4 years | 2016 | under 5 |
| Isay | Boys | 84 | 2002-2015, 12 years | 2005 | under 5 |
| Isaya | Boys | 58 | 1995-2021, 9 years | 2002 | under 5 |
| Isayah | Boys | 791 | 1992-2025, 32 years | 2007 | 8 |
| Isayana | Girls | 20 | 1996-2025, 4 years | 1996 | 5 |
| Isayiah | Boys | 6 | 2005, 1 year | 2005 | under 5 |
| Isbah | Girls | 10 | 2022-2025, 2 years | 2022 | 5 |
| Isbel | Girls | 28 | 1997-2025, 5 years | 2009 | 6 |
| Isbell | Girls | 15 | 1916-1927, 3 years | 1916 | under 5 |
| Isbella | Girls | 165 | 1926-2023, 21 years | 2006 | under 5 |
| Isbeth | Girls | 11 | 2025, 1 year | 2025 | 11 |
| Isco | Boys | 33 | 2016-2025, 5 years | 2018 | 5 |
| Iseah | Boys | 148 | 1998-2014, 16 years | 2004 | under 5 |
| Isebell | Girls | 5 | 1927, 1 year | 1927 | under 5 |
| Isebella | Girls | 92 | 2000-2016, 14 years | 2011 | under 5 |
| Isel | Girls | 292 | 1993-2025, 26 years | 1994 | 13 |
| Isela | Girls | 5,925 | 1926-2025, 90 years | 1998 | 100 |
| Iselda | Girls | 16 | 1975-2001, 3 years | 1987 | under 5 |
| Iselin | Girls | 17 | 2009-2018, 3 years | 2018 | under 5 |
| Iselis | Girls | 23 | 2016-2017, 2 years | 2016 | under 5 |
| Isella | Girls | 281 | 1983-2025, 26 years | 2019 | 12 |
| Iselle | Girls | 39 | 2002-2020, 5 years | 2014 | under 5 |
| Isely | Girls | 5 | 2020, 1 year | 2020 | under 5 |
| Iselynn | Girls | 17 | 2023-2025, 3 years | 2023 | 5 |
| Iselys | Girls | 5 | 2016, 1 year | 2016 | under 5 |
| Isen | Boys | 41 | 2008-2020, 7 years | 2011 | under 5 |
| Isenia | Girls | 18 | 1994-2008, 3 years | 1997 | under 5 |
| Iseral | Boys | 5 | 1919, 1 year | 1919 | under 5 |
| Ises | Girls | 5 | 2000, 1 year | 2000 | under 5 |
| Iseult | Girls | 5 | 2016, 1 year | 2016 | under 5 |
| Ish | Boys | 6 | 2006, 1 year | 2006 | under 5 |
| Isha | Girls | 5,151 | 1960-2025, 60 years | 2023 | 176 |
| Ishaal | Girls | 6 | 2007, 1 year | 2007 | under 5 |
| Ishaan | Boys | 5,462 | 1990-2025, 34 years | 2019 | 266 |
| Ishaana | Girls | 8 | 2019, 1 year | 2019 | under 5 |
| Ishaani | Girls | 78 | 2015-2025, 11 years | 2022 | 7 |
| Ishaanreddy | Boys | 21 | 2023-2025, 3 years | 2023 | 7 |
| Ishaanvi | Girls | 53 | 2009-2025, 8 years | 2019 | 9 |
| Ishaaq | Boys | 163 | 2002-2025, 19 years | 2022 | 9 |
| Ishah | Girls | 10 | 1985-1996, 2 years | 1985 | under 5 |
| Ishak | Boys | 73 | 2004-2024, 11 years | 2023 | under 5 |
| Isham | Boys | 615 | 1880-2022, 70 years | 1922 | under 5 |
| Ishamel | Boys | 22 | 1922-1995, 4 years | 1922 | under 5 |
| Ishan | Boys | 2,737 | 1982-2025, 40 years | 2009 | 84 |
| Ishana | Girls | 406 | 1999-2025, 27 years | 2010 | 11 |
| Ishanae | Girls | 6 | 1996, 1 year | 1996 | under 5 |
| Ishani | Girls | 1,250 | 1989-2025, 33 years | 2025 | 68 |
| Ishank | Boys | 37 | 2018-2025, 6 years | 2018 | 5 |
| Ishant | Boys | 30 | 2008-2012, 4 years | 2008 | under 5 |
| Ishanth | Boys | 32 | 2008-2016, 5 years | 2014 | under 5 |
| Ishanti | Girls | 12 | 2002-2003, 2 years | 2003 | under 5 |
| Ishanvi | Girls | 615 | 2007-2025, 19 years | 2019 | 38 |
| Ishaq | Boys | 708 | 1977-2025, 36 years | 2025 | 45 |
| Ishar | Boys | 6 | 2019, 1 year | 2019 | under 5 |
| Ishara | Girls | 93 | 1991-2025, 14 years | 2025 | 10 |
| Ishareddy | Girls | 17 | 2023-2024, 2 years | 2024 | under 5 |
| Ishaun | Boys | 5 | 2010, 1 year | 2010 | under 5 |
| Ishawn | Boys | 33 | 2002-2011, 5 years | 2003 | under 5 |
| Ishay | Boys | 24 | 2018-2025, 4 years | 2018 | 5 |
| Ishayu | Boys | 6 | 2011, 1 year | 2011 | under 5 |
| Ishbel | Girls | 10 | 2010-2020, 2 years | 2010 | under 5 |
| Ishea | Girls | 26 | 1975-1997, 4 years | 1991 | under 5 |
| Isheja | Girls | 11 | 2024-2025, 2 years | 2024 | 5 |
| Ishi | Girls | 119 | 1979-2023, 15 years | 2014 | under 5 |
| Ishia | Girls | 147 | 1973-2006, 19 years | 1977 | under 5 |
| Ishiah | Boys | 6 | 2004, 1 year | 2004 | under 5 |
| Ishika | Girls | 1,092 | 2000-2025, 26 years | 2001 | 38 |
| Ishimwe | Both, 52% girls | 62 | 2020-2025, 6 years | 2020 | 12 |
| Ishir | Boys | 110 | 2018-2025, 8 years | 2022 | 21 |
| Ishira | Girls | 58 | 2023-2025, 3 years | 2025 | 31 |
| Ishita | Girls | 610 | 1989-2025, 30 years | 2010 | 15 |
| Ishitha | Girls | 108 | 2008-2025, 14 years | 2025 | 13 |
| Ishmael | Boys | 6,794 | 1880-2025, 123 years | 2017 | 121 |
| Ishmail | Boys | 208 | 1971-2012, 25 years | 1995 | under 5 |
| Ishmam | Boys | 5 | 1996, 1 year | 1996 | under 5 |
| Ishman | Boys | 11 | 1939-1980, 2 years | 1980 | under 5 |
| Ishmeal | Boys | 301 | 1916-2017, 42 years | 1997 | under 5 |
| Ishmeet | Both, 67% girls | 15 | 2008-2016, 2 years | 2016 | under 5 |
| Ishmel | Boys | 297 | 1916-2022, 41 years | 2000 | under 5 |
| Ishmil | Boys | 19 | 1991-1996, 3 years | 1991 | under 5 |
| Ishna | Girls | 6 | 1977, 1 year | 1977 | under 5 |
| Ishraq | Boys | 30 | 2000-2022, 6 years | 2000 | under 5 |
| Ishrat | Girls | 57 | 1997-2019, 10 years | 2003 | under 5 |
| Ishta | Girls | 5 | 2014, 1 year | 2014 | under 5 |
| Ishvi | Girls | 23 | 2021-2025, 4 years | 2025 | 8 |
| Ishvik | Boys | 31 | 2025, 1 year | 2025 | 31 |
| Ishvika | Girls | 9 | 2025, 1 year | 2025 | 9 |
| Ishwaq | Girls | 10 | 2009-2016, 2 years | 2009 | under 5 |
| Ishwari | Girls | 14 | 2010-2024, 2 years | 2010 | under 5 |
| Ishya | Girls | 32 | 2005-2018, 5 years | 2010 | under 5 |
| Isia | Girls | 83 | 2000-2025, 12 years | 2022 | 10 |
| Isiaah | Boys | 60 | 1997-2006, 9 years | 1997 | under 5 |
| Isiac | Boys | 195 | 1912-2010, 23 years | 2001 | under 5 |
| Isiah | Boys | 24,721 | 1880-2025, 146 years | 2001 | 120 |
| Isiaha | Boys | 352 | 1989-2016, 22 years | 1999 | under 5 |
| Isiaih | Boys | 187 | 1990-2010, 16 years | 2004 | under 5 |
| Isias | Boys | 32 | 1994-2025, 6 years | 2022 | 5 |
| Isiash | Boys | 6 | 1998, 1 year | 1998 | under 5 |
| Isibeal | Girls | 14 | 2007-2014, 2 years | 2014 | under 5 |
| Isibella | Girls | 6 | 2011, 1 year | 2011 | under 5 |
| Isidor | Boys | 419 | 1883-2025, 46 years | 1914 | 7 |
| Isidora | Girls | 637 | 1906-2025, 56 years | 2023 | 24 |
| Isidore | Boys | 3,421 | 1881-2025, 122 years | 1919 | 31 |
| Isidoro | Boys | 1,292 | 1913-2023, 102 years | 1929 | under 5 |
| Isidra | Girls | 622 | 1903-2025, 81 years | 1921 | 9 |
| Isidro | Boys | 8,211 | 1885-2025, 117 years | 2000 | 88 |
| Isileli | Boys | 57 | 1996-2024, 9 years | 2019 | under 5 |
| Isioma | Girls | 64 | 2006-2023, 10 years | 2022 | under 5 |
| Isis | Girls | 11,893 | 1901-2025, 63 years | 2005 | 128 |
| Isiss | Girls | 39 | 1998-2008, 7 years | 2003 | under 5 |
| Iskandar | Boys | 16 | 2010-2020, 3 years | 2020 | under 5 |
| Iskander | Boys | 79 | 2008-2025, 12 years | 2009 | 6 |
| Iskender | Boys | 27 | 2019-2022, 3 years | 2019 | under 5 |
| Iskra | Girls | 28 | 2017-2023, 5 years | 2017 | under 5 |
Order: alphabetical by the name as SSA spells it. Given to: the share of girls among all babies given the name.