Anthony John McQuillan (born 19 March 1951 in Greenslopes, Queensland) is a former Australian Test cricket umpire from Queensland.
He umpired one Test match in 1993 between Australia and New Zealand at Perth on 12 November to 16 November 1993, a match drawn through Australia's "unaccountable dithering".[1] McQuillan's partner was Darrell Hair.
McQuillan umpired 14 One Day International (ODI) matches between 1993 and 1999. Altogether, he umpired 54 first-class matches between 1989 and 2001.[2]
Before he began umpiring, McQuillan played in the Brisbane grade cricket competition for Easts, Colts and Wynnum-Manly.