Anton Jason Haig (born 8 May 1986) is a South African golfer.
Haig was born in Nelspruit. He turned professional on 1 September 2004 and plays on the Sunshine Tour and the Asian Tour. He has won four times worldwide with his biggest win to date occurring at the multi-tour sanctioned Johnnie Walker Classic in March 2007. This victory earned him full European Tour membership and propelled Haig into the top 100 of the Official World Golf Rankings.