1770+ Boy Names Ending in O

Maine's state motto.

The name of four popes and several saints: a promising Italian import.

A cool and wearable option for honoring an ancestral Harold.

The unique O-ending makes this name memorable, especially for someone with ties to Texas.

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.

This name of a California desert town, used by Deborah Falconer and Robert Downey, Jr. for their son, makes a much livelier and more individual – not to mention more masculine – improvisation on the themes of India and Indiana.

The meaning makes this name interesting, but the sound is too related to nemesis.

Think Harry with a go-getter ending.

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.

This unusual spelling was used by Johnny Knoxville for his son.