Oscar, Oliver, Otis, Owen … There is no shortage of baby boy names that start with the letter O. Here’s a great list of options to help you find the perfect for your little boy.
Modern Baby Boy Names Starting with O
First we'll start with the most popular baby boy names in 2021:
- Owen — Owen was a first name prior to the Renaissance and in modern times. It found its use as a surname, however, during the Renaissance in Wales.
- Oliver — Oliver was a name that was widely popular in the middle ages, but as soon as Oliver Cromwell came to office, it declined quickly. Now it is on the rise again with the popularity of vintage names.
- Oscar — Oscar became extremely popular during the 1700s after poet James Macpherson wrote a series of epic works that included a character with the name. Even Napoleon Bonaparte was a fan. He named his godson Oscar, and the boy grew up to become King Oscar I of Sweden.
- Ollie — Ollie as a given name is derived from the Latin term “oliva”.
- Oakley — Oakley is a gender-neutral name that experienced a major revival in the 2010s. In previous centuries, however, Oakley was primarily a male name. Oakley frequently ranked among the top 1,000 baby names for boys from 1901-1920. After a decades-long hiatus from the popular list, Oakley reappeared among the top 1,000 baby boy names in 2011. It became one of the top 500 baby boy names in 2017 and has remained popular ever since. Oakley first appeared among the top 1,000 baby names for girls in 2013. It went on to become one of the top 500 baby girl names in 2017 and has remained commonplace ever since.
- Orion — Orion was a legendary hunter in Greek myth that was punished by the gods for boasting he would kill all living things on Earth. He was killed by a giant scorpion and was turned into a constellation of stars by either Artemis or Zeus, depending on the version of the story.
- Orlando — Orlando ranked among the top 500 baby boy names from the early 1950s through the early 2010s. As the name of a major city in Florida, Orlando is similar to other place names that double as given names such as Charlotte, Cheyenne, Dallas, Dayton, and Sydney.
- Odin — Odin is the top mythological being in Norse mythology. He is said to have killed Fenrir and is said to reside still in Valhalla.
Unique Baby Boy Names Starting With O
While it’s fun to see what lots of other people are naming their babies, many people prefer to find baby names that are more uncommon. To that end, below is the some of the more unusual & unique boy names that start with O:
No unique O names yet but we’re adding new ones every day!
Did you find any winners in the list of rare boy names that start with O? If not, don't worry! We have thousands more names on the site to choose from. Be sure to check out all baby names that start with Oas well as middle names that start with O.