How Common is the First Name Cleo?
We estimate that there are 12,217 people named Cleo who are currently alive and were born in the United States. Cleo is the 1,497th most common for women, and the 2,177th most common overall.
How Old are People Named Cleo?
The average person named Cleo is 43.48 years old.
Is Cleo a Popular Baby Name Right Now?
534 people named Cleo were born in the U.S. in 2025. It was the 577th most popular name for girls, and the 1,117th most popular overall.
The popularity of Cleo peaked in 1907, when it was the 171st most popular name for baby girls.
Is Cleo a Boy's Name or a Girl's Name?
Cleo is a unisex name, but more common for women. 77.4% of people named Cleo are female, while 22.6% are male.
Facts About the Name Cleo
Popularity of Cleo in England
In 2020, Cleo was the 180th most popular name for girls in England and Wales.