Alonzo

Alonzo is a masculine given name used in Spanish-, Italian-, and English-speaking communities. It is a variant of Alfonso/Alphonso and has several spellings, including Alfonzo and Alphonso, and it is sometimes found as a surname. The name appears in historical records, literature, and contemporary usage, reflecting its cross-cultural adoption.

Notable people with the given name include Alonzo Church, an American mathematician and logician known for the lambda calculus and the Church–Turing thesis; Alonzo Mourning, an American basketball player and Hall of Fame inductee; Alonzo Bodden, an American comedian and actor; and Alonzo Herndon, an African American entrepreneur who founded Atlanta Life Insurance Company. In fiction and broader popular culture, the name Alonzo has appeared as a character in various media, illustrating its continued presence in modern naming practices.