How popular is the name Guillermo?

Guillermo ranks 609th among boys' names in US records, with 32,401 births since 1885. Over the past decade it accounts for 3,155.

Is Guillermo a unisex name?

No. Guillermo is recorded almost entirely as a boys' name; births to the other gender are too few to register as a share.

1998, when 747 children were given the name. It has been in use for 140 years and is still recorded as of 2024.

Boy name#609 of boy names

Pronounced G IY0 EH1 R M OW0 (ARPABET)

Guillermo is a boys' name, and first appears in 1885. It has been given to 32,401 children — the 609th most common boys' name on record.

It has been slipping, down 39% on the previous decade. Its best single year was 1998, when 747 children were given it.

1998Boys: 747Girls: 0

Phonetic detail

Pronunciations:: G IY0 EH1 R M OW0 · G W IH0 L Y EH1 R M OW0 · G W IY0 EH1 R M OW0
Stress pattern:: 010 · 010 · 010
Syllables:: 3

Stress digits mark unstressed (0), primary (1) and secondary (2) syllables.

Same first letter and syllable count, peaking around the same time.

Names from the same era with a matching rhythm but a different initial.

How popular is the name Guillermo?: Guillermo ranks 609th among boys' names in US records, with 32,401 births since 1885. Over the past decade it accounts for 3,155.
Is Guillermo a unisex name?: No. Guillermo is recorded almost entirely as a boys' name; births to the other gender are too few to register as a share.
When was Guillermo most popular?: 1998, when 747 children were given the name. It has been in use for 140 years and is still recorded as of 2024.