Total births
13
Boys' name · since 1991
Ontarius
Ontarius has 13 recorded births since 1991 in federal Social Security data, most heavily in 1991 -- full year-by-year trend, decade aggregates, and state rankings follow.
- 13
- total births
- 1991–2000
- years on record
- 1990s
- peak decade
- 54%
- born in that decade
Ontarius is not among the current top-ranked boys names; 13 have been recorded since 1991.
Social Security Administration records show Ontarius recorded 13 times among boys since 1991, though it doesn't currently rank among the most-used boys names, peaking in the 1990s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1991 to 2000.
- 13 total births
- 1991–2000 years on record
- 1990s peak decade
- 54% born in that decade
Data updated Jul 2026
The verdict
13 boys have been named Ontarius since 1991, peaking in the 1990s, last recorded in 2000.
- 13
- total births
- 1991–2000
- years on record
- 1990s
- peak decade
- 54%
- born in that decade
1990s
Peak decade
54% of everyone ever named Ontarius was born in this single decade.
1991
Single peak year
7 babies were named Ontarius in 1991 - its busiest year on record.
Ontarius's usage pattern, beyond the headline number
Divide Ontarius's SSA record in two at 2000 and the more recent half accounts for 46% of all births, the earlier half the remaining 54%, a genuinely balanced usage pattern. Its calmest year was 2000, with only 6 births recorded -- set against the 1991 peak of 7, that's the full swing in one name's fortunes.
Ontarius at a glance
Last recorded 2000Peak year
1991
Current rank
Unranked
Active since
1991
Ontarius popularity over time
Annual U.S. births registered with the Social Security Administration · 1991–2000
- Peak year (1991)
- 7
- Annual births at peak, across 10 years of records
Ontarius by decade
Total births in each ten-year window, peak vs trough at a glance
1990s was Ontarius's strongest decade.
7 babies received the name during that ten-year window, about 54% of all-time use.
Ontarius births by decade
Total births in each ten-year window
- 1990s
1990s
7 births
- 2000s
2000s
6 births
What this shows Peak: 1990s at 7 births (54% of all-time use).
Frequently Asked Questions
How popular is the name Ontarius? ▼
Since 1991, Social Security records show 13 babies named Ontarius. The most recent recorded year was 2000. Its busiest year on record was 1991, with 7 births.
When was Ontarius most popular? ▼
Ontarius was most popular in the 1990s decade with 7 total births. The single peak year was 1991.
How long has the name Ontarius been used? ▼
The SSA has tracked Ontarius since 1991 -- 10 years through the most recent 2000 data.
What names are similar to Ontarius? ▼
Names with a similar sound or spelling include Ontario, Onterio, Onterrio, Ontonio, and 1 more. These share a common prefix and are also used for boys.
What to do with Ontarius's data
- Ontarius's usage has stayed within range of its 1990s decade-level peak (7 total births) through the 2000s (6) -- a comparatively stable name, not a fading trend.
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Ontarius
Nearby Names Like Ontarius
Names with a similar sound, spelling, or feel to Ontarius
Ontario Boy
#10094 877 births
Onterio Boy
38 births
Onterrio Boy
36 births
Ontonio Boy
11 births
Ontrell Boy
5 births
Compare Ontarius side by side: Ontarius vs Ontario Ontarius vs Onterio Ontarius vs Onterrio
Related Names
Names with a similar number of total births
Data Sources
Data as of July 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1991–2000 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Ontarius: Baby Name Since 1991 - 13 Births, Peak 1991." NameAlmanac. Accessed via https://namealmanac.com/name/ontarius. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Ontarius draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.