Lachlan Ashwell Grant was a New Zealand rugby union player. Born in Temuka, Grant is regarded as that town's finest rugby product. A flanker and lock, Booth represented South Canterbury at a provincial level, and was a member of the New Zealand national side, the All Blacks, from 1947 to 1951. He played 23 matches for the All Blacks including four internationals, and captained the team in two matches during the 1951 tour of Australia.