Greg Austin may refer to:
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Greg Austin (rugby) (born 1963), Australian rugby league and union player
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Greg Austin (actor)
Gregory Paul Austin (born 2 August 1992) is an English actor, best known for his roles as Travis Leich in Amazon Prime's ''Hunters (2020 TV series), Hunters'' and Charlie Smith in the BBC's ''Doctor Who'' spin-off ''Class (2016 TV series), Class ...
(born 1992), British actor
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Greg Austin (American football) (born 1983), American football player
{{human name disambiguation, Austin, Greg