Lucas vs William

William is the more popular boy name in Canada, #5 to #7 in 2023. Lucas is the more popular boy name in the United States, #9 to #10 in 2024. The two countries disagree on which is ahead.

Place by place

Each place ranks its own registered births, so the two names are compared inside one list at a time, in that place's most recent complete year.

LucasWilliam#1#5#10#20Canada#7 → #5 ↑2United States#9 → #10 ↓1Alberta#10 → #6 ↑4British Columbia#5 → #10 ↓5Ontario#8 → #12 ↓4Quebec#19 → #4 ↑15
PlaceYear Lucas William Ahead
Canada2023#7#5William
United States2024#9#10Lucas
Alberta2024#10#6William
British Columbia2024#5#10Lucas
Ontario2024#8#12Lucas
Quebec2024#19#4William

Lucas and William in Canada, 2020–2023

Lucas stood at #7 in 2023, matching its 2020 rank in Canada. William slipped from #3 in 2020 to #5 in 2023 in Canada.

#1#20#5 William#7 Lucas2020202120222023

See the full Canada boy names list for 2023 →

Lucas and William in the United States, 2020–2024

Lucas slipped from #8 in 2020 to #9 in 2024 in the United States. William slipped from #5 in 2020 to #10 in 2024 in the United States. Lucas passed William in 2023.

#1#10#9 Lucas#10 William20202021202220232024

See the full United States boy names list for 2024 →

Other comparisons

How this comparison is built

Both names are ranked by how many babies were registered with that exact spelling, so every position here counts real births rather than votes or searches. Rank is the only measure every source publishes, so it is what the charts plot; birth counts are not released for every place.

A place appears only in the years it published a complete list, which is why a name can be missing from a year it was almost certainly given to some babies. See every head-to-head on the site, or the ranked lists these names come from.