Luca or Theo

Theo is the more popular boy name in Canada, #17 to #21 in 2024. Luca is the more popular boy name in England and Wales, #4 to #12 in 2025. Luca is the more popular boy name in the USA, #23 to #80 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.

Where each place ranks Luca against Theo, in that place's most recent complete year.LucaTheo#1#25#50#100Canada#21 → #17 ↑4England and Wales#4 → #12 ↓8USA#23 → #80 ↓57Alberta#17 → #47 ↓30British Columbia#13 → #26 ↓13Ontario#15 → #33 ↓18Quebec#52 → #10 ↑42
PlaceYear Luca Theo Ahead
Canada2024#21#17Theo
England and Wales2025#4#12Luca
USA2024#23#80Luca
Alberta2024#17#47Luca
British Columbia2024#13#26Luca
Ontario2024#15#33Luca
Quebec2024#52#10Theo

Luca and Theo in Canada, 2020–2024

Luca climbed from #60 in 2020 to #21 in 2024 in Canada. Theo climbed from #30 in 2020 to #17 in 2024 in Canada.

Luca and Theo ranked by year in Canada, 2020 to 2024.#1#50#100#17 Theo#21 Luca20202021202220232024

See the full Canada boy names list for 2024 →

Luca and Theo in England and Wales, 2020–2025

Luca climbed from #45 in 2020 to #4 in 2025 in England and Wales. Theo climbed from #17 in 2020 to #12 in 2025 in England and Wales. Luca passed Theo in 2023.

Luca and Theo ranked by year in England and Wales, 2020 to 2025.#1#50#4 Luca#12 Theo202020212022202320242025

See the full England and Wales boy names list for 2025 →

Luca and Theo in the USA, 2020–2024

Luca climbed from #67 in 2020 to #23 in 2024 in the USA. Theo climbed from #172 in 2020 to #80 in 2024 in the USA.

Luca and Theo ranked by year in USA, 2020 to 2024.#1#125#250#23 Luca#80 Theo20202021202220232024

See the full USA 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.