John Stalker Chillas (born 31 July 1951) is a Scottish professional golfer.

He has also won three times on the European Seniors Tour.

His best season on the Seniors Tour was 2004 when, in addition to winning the end-of-season Estoril Seniors Tour Championship, he was runner-up 5 times and third on two other occasions.

From late August to late September he was runner-up in 4 successive tournaments, the Charles Church Scottish Seniors Open, the Bovis Lend Lease European Senior Masters, The Daily Telegraph Turismo Andaluz European Seniors Match Play Championship and the ADT English Seniors Open.

European Seniors Tour playoff record (1–0)