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Casimiro

Boy name · Mexican

Meaningproclaimer of peace · Slavic

Casimiro is a Mexican boy name meaning “proclaimer of peace”, with Slavic roots. Slavic names are often built around peace, glory or love. A meaning like this gives a child something to grow into, and a good story to tell when someone asks about their name. It sounds flowing and melodic, it's a longer name that leaves plenty of room for nicknames, and it pairs well with a short middle name.

Did you know?

  • Scrabble scoreIf names were allowed in Scrabble, Casimiro would score 12 points.
  • GenerationCasimiro peaked in 1881, which makes it a Victorian-era favorite, the kind of name you'd find on a great-great-grandparent.
  • Roll callIn a typical school of 500 kids, your Casimiro would very likely be the only one. About 1 in 285,714 baby boys got the name in 2025.
  • HistoryCasimiro first shows up in US birth records in 1881, the first year at least 5 babies got it. It has been in use for 144 years since.
Toddler sitting among toys
hello, little Casimiro

US births per million boys, 1881–2025

0306018811920196020002025

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Popularity: U.S. Social Security Administration (babies with 5+ births per year).

About the name Casimiro

Casimiro is a boy name of Mexican origin meaning “proclaimer of peace”. With 4 syllables it has a flowing, lyrical sound, and plenty of room for a nickname, so a short middle name balances it nicely. It was most fashionable in the 1880s, which gives it a vintage, grandparent-chic charm. It's rarely heard today, so it stands out while still being a real, established name.

Origin:Mexican names

More Mexican boy names

Questions about the name Casimiro

What does the name Casimiro mean?

Casimiro means “proclaimer of peace” and comes from Slavic. Names built around “peace” have been loved for generations, and give a child a meaning worth sharing when someone asks about their name. Other boy names with a similar meaning include Axel (“father of peace”), Solomon (“peace”), Salem (“peace”) and Amani (“peace”).

What is the origin of the name Casimiro?

Casimiro is Mexican in origin, and its meaning traces back to Slavic. Other Mexican names to consider are Liam (“resolute protector”), Oliver (“olive tree”), Mateo (“gift of God”) and Lucas (“man from Lucania”).

Is Casimiro a boy or girl name?

Casimiro is a boy name. In 2025, 6 US boys were named Casimiro.

How popular is the name Casimiro?

Casimiro ranked #10,695 for US boys in 2025, given to 6 babies. Its best year was 1881, when it reached #781.

What names are similar to Casimiro?

If you like Casimiro, you might also like Axel, Solomon, Salem and Amani.

What should I know before naming my baby Casimiro?

Casimiro is a Mexican boy name meaning “proclaimer of peace”, with Slavic roots. Slavic names are often built around peace, glory or love. A meaning like this gives a child something to grow into, and a good story to tell when someone asks about their name. It sounds flowing and melodic, it's a longer name that leaves plenty of room for nicknames, and it pairs well with a short middle name. Say it out loud with your last name and any middle names you're considering, and check the initials it makes.