Where Theo ranks in the newest official baby-name lists, place by place, from each statistics office's own numbers.
Theo ranks highest in Scotland: #6 in 2025, given to 243 babies.
Where Theo ranks now: Scotland #6 (2025), Northern Ireland #7 (2025), New Zealand #10 (2025), England and Wales #12 (2025), Switzerland #14 (2025), Canada #15 (2025), Austria #18 (2025), British Columbia #20 (2025), Ireland #21 (2025), Norway #22 (2025), Sweden #23 (2025), Queensland #27 (2025), New South Wales #32 (2025), Ontario #33 (2024), South Australia #47 (2025), Victoria #50 (2025), The Czech Republic #80 (2025), The United States #82 (2025).
Every list is an official count of the names given to babies, but each publisher counts a little differently: births or registrations, whether accents make a separate name, how rare names are left out. Each place's page says how its list is counted.