Geronimo \ge-roni-mo, ger(o)-nimo\ as a boy's name is pronounced hare-ROH-nee-moh, jer-RAH-nah-moh. It is of Italian and Greek origin, and the meaning of Geronimo is "sacred name". Variant of Jerome, a saint's name. The Native American Geronimo (19th century) was one of the last of the renowned Apache warrior chiefs.

Geronimo has 6 variant forms: Heronimo, Herinomos, Hieronimo, Hieronymus, Jeronimo and Jeronimus.