Roger J. Mackay (31 March 1956 – 17 June 2002) was an Australian professional golfer.

Mackay was educated at Christ Church Grammar School and graduated from the University of Western Australia.

His greatest successes came in Japan, where he won on eight occasions including finishing second on the money list in 1991.

In 1991, he was named Western Australian Sports Star of the Year *Note: The 1991 Mizuno Open was shortened to 54 holes due to rain.

1Co-sanctioned by the Asia Golf Circuit PGA of Japan Tour playoff record (1–0) PGA Tour of Australia playoff record (0–2) CUT = missed the half-way cut "T" = tied Note: Mackay only played in The Open Championship and the PGA Championship.