What was Geezer Butler's birth first name?

Geezer Butler’s birth first name was Terence.

The Black Sabbath bassist was born Terence Michael Joseph Butler on 17 July 1949 in Aston, Birmingham, England. “Geezer” is his famous nickname, not his birth name, and it became so closely associated with him that many listeners assume it was part of his original given name.

Butler grew up in a working-class Irish Catholic family in Birmingham and became Black Sabbath’s bassist and principal lyricist. His lyrics helped establish the band’s fascination with war, religion, social anxiety, fantasy, and darker subjects. He was also an early member of the group’s creative core alongside Tony Iommi, Ozzy Osbourne, and Bill Ward.

The nickname has an ordinary origin despite its later heavy-metal aura. Butler explained that his brother used “geezer,” a Cockney term meaning a man or fellow, and the young Butler began using it at school. Another common mix-up is confusing Butler’s first name with those of fellow band members: Tony was born Anthony, while Ozzy’s birth name was John Michael Osbourne.