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.
- #32,267 of 45,481
- all-time among boys
- 13
- born since 1991
- 1990s
- peak 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.
- #32,267 of 45,481 all-time among boys
- 13 born since 1991
- 1990s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Ontarius ranks #32,267 of 45,481 boys' names by all-time recorded births (highest first). 13 born since 1991, peaking in the 1990s.
- #32,267 of 45,481
- all-time among boys
- 13
- born since 1991
- 1990s
- peak decade
Ontarius's 13 recorded births place it above 28.77% of the 45,481 boys names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
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 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
1990s is the heaviest window (7 births, 54% of the file).
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? ▼
Where does Ontarius sit in the SSA name archive? ▼
When was Ontarius most popular? ▼
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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.
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
Compare Ontarius side by side: Ontarius vs Ontario Ontarius vs Onterio Ontarius vs Onterrio
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Ontarius: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1991)
Similar record span (~9 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 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).
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 August 2026.