Gregory Arthur Lamb (born 4 March 1981, Salisbury (now Harare), Zimbabwe) is a Zimbabwean cricketer. He is a right-handed batsman who can bowl both off spin and right arm medium pace.
He was Zimbabwe's Young Player of the Year and represented his country at Under-12, Under-15 and Under-19 levels. He played in the C&G Trophy final for Hampshire against Warwickshire in 2005 and was a valuable member of the squad which finished runners-up in the Frizzell County Championship in 2005.
Lamb was released by Hampshire at the end of the 2008 season having not played for the first team under caretaker coach Giles White. He took just eight Championship wickets at 71.37 in the 2008 County Championship season.