Aldrin had two sisters: Madeleine, who was four years older, and Fay Ann, who was a year and a half older. His nickname, which became his legal first name in 1988, arose as a result of Fay's mispronouncing "brother" as "buzzer", which was then shortened to "Buzz". He was a Boy Scout, achieving the rank of Tenderfoot Scout.

Aldrin did well in school, maintaining an A average. He played football