1770+ Boy Names Ending in O

Croatian short form of Josip (Joseph) properly spelled Joško. This would make a fun alternative nickname for Joseph or even Joshua outside Croatia, too.

Norman form of the Germanic name Haimo.

When Kim Kardashian and Kanye West named their daughter Chicago — after West's hometown — we expected it to rise for baby girls. But American parents have taken to Chicago as a boy name. It's been given to more boys than girls every year since 2018.

A cool and wearable option for honoring an ancestral Harold.

Opera star Domingo was responsible for giving this popular Latin name its green card. It was commonly used by early Christians to convey their serenity in the faith, and it was borne by several minor saints.

If you've heard this name, it's probably from the hero of the acclaimed Julia Glass novel, Three Junes, or else the political scientist Richard Fenno. As well as a Finnish name, it's alos a Frisian diminutive from names in the Frederick family, making it is a cousin of Freddie, Fritz and Fedde. This name is so rare it's never appeared on the charts, but with its energetic O ending it might appeal if you're looking for an alternative to names like Otto and Arlo.

Quito is a place-name (it's the capital of Ecuador) with lots of lively energy--as long as it's pronounced correctly.

The great pre-Renaissance painter known as Fra Angelico was actually born Guido di Pietro, but his nom d'art might work for your little angel.

We count Techno among the weird celebrity baby names, and yet we have to admit that it's the perfect choice for a child of Grimes and Elon Musk.