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Ontario

Gender
Boy
Say it
on-TAIR-ee-oh
Origin
Native American

Ontario is a boys' name of Native American origin. Too few babies were given it in the latest year to rank.

What does Ontario mean?

Native American: from an Iroquoian word, via the Canadian lake and province

Named after the Canadian province and Great Lake, whose name comes from an Iroquoian word for the lake.

Is Ontario a girl's or a boy's name?

Ontario is a boys' name.

How popular is Ontario in the US?

No boys in the US were given it in 2025, or too few to be listed. Its busiest year was 1991, with 35 boys. It first appears in the records in 1967.

Half of all the boys named Ontario in the US since 1880 were born between 1982 and 2002, the years shaded on the chart below.

1967Busiest: 35 in 19912024
Ontario in the US, year by year
YearBoysRank
20247#9,888
20230–
20227#9,815
202114#6,027
20208#8,734
20195#12,138
20188#8,813
20176#10,770
201610#7,600
20150–
20149#8,124
20136#10,722
20126#10,763
201114#5,939
201012#6,692
20099#8,305
200820#4,710
200714#5,898
200618#4,861
200519#4,459
200411#6,514
200316#4,810
200215#4,913
200124#3,507
200015#4,779
199924#3,275
199819#3,704
199726#2,899
199629#2,585
199522#3,095
199415#4,088
199319#3,362
199218#3,452
199135#2,089
199018#3,303
198930#2,239
198816#3,198
198719#2,721
198623#2,358
198522#2,356
198419#2,528
198320#2,407
198212#3,481
198120#2,417
198024#2,162
197921#2,309
197823#2,068
197714#2,909
197617#2,507
197522#2,064
197416#2,457
197322#1,927
197213#2,658
19718#3,656
19707#3,834
19696#3,934
19680–
19675#3,964

Names like Ontario

Names given in the same years and the same naming tradition, with a similar sound.

More Native American names

Every Native American name

Sources

Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.

To cite this page: Nameling, “Ontario: name meaning, origin and popularity”, https://www.nameling.co.uk/names/ontario, updated 20 October 2026.