The first name Alonzo

In 2025, 15 boys were named Alonzo, making it the 1,705th most popular boys’ name. It peaked in 2023, with 17 births (#1,461).

Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Alonzo with other names.

In 2025, 590 boys born in the United States were named Alonzo, the 511th most popular boys’ name that year. It was used most in 2022, when 651 were.

US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.

Nicknames for Alonzo

• Lonnie

• Alonzo Church
  American mathematician and logician (1903–1995)
• Alonzo Mourning
  American basketball player (born 1970)
• Alonzo Babers
  American athletics competitor, born 1961
• Alonzo Russell
  Bahamian sprinter, born 1992
• Alonzo Gee
  American basketball player (born 1987)
• Alonzo Chappel
  American painter (1828-1887)
• Alonzo Bradley
  American basketball player (born 1953)
• Alonzo Dillard Folger
  American politician (1888–1941)
• Mark Hanna
  American businessman and politician (1837–1904)
• Gorilla Zoe
  American rapper, born 1983

How popular is the name Alonzo?

In 2025, 15 boys born in England and Wales were named Alonzo, ranking 1,705th. Its peak was 2023, with 17 births.

What are nicknames for Alonzo?

Common nicknames for Alonzo include Lonnie.

Is Alonzo a boy's or a girl's name?

Mostly a boy's name: 100% of the 46,109 US babies named Alonzo since 1880 were boys.

When was Alonzo most popular?

2022 in the United States, when 651 babies were named Alonzo, its highest rank at 471st.

What name is Alonzo a form of?

Alonzo is a form of Alfonso.

Is Alonzo also a surname?

Yes. Alonzo is used as a surname as well as a first name; its surname page has the origin and how many people carry it.