Guy Perrett (born 22 March 1975 in Lanark, Scotland) is a former Scotland 'A' international rugby union player who played with Glasgow Rugby, now Glasgow Warriors. His regular playing position was Lock. He received his only Scotland 'A' cap on 5 November 2002 against Romania. Scotland won the match 21-18. He made nine appearances in the Heineken Cup for Glasgow. He played in the Scottish Inter-District Championship; in the squad in 1996-97 and playing in 1997-98. He played for Glasgow against the touring South Africa national rugby union team.