Ronald Brian Jacks (born January 23, 1948) was a Canadian Olympic and international swimmer in the 1960s and 1970s.

He is currently a leading coach for Canadian swimmers such as Richard Weinberger through the Pacific Coast Swimming Club.

Ron has produced finalists or semi-finalists at every Olympic Games 1976–2004, coached two Olympians to Bronze medals (Shannon Smith (swimmer) and Pam Rai), and coached two World Champion Open Water swimmers (Kim Dyke - 1993 Open Water World Cup Series Champion and Greg Streppel - 1994 World Open Water Champion).

[1][2] At the 1966 British Empire and Commonwealth Games held in Kingston, Jamaica, he won a gold medal in the 110 yards butterfly.

In the 1970 British Commonwealth Games in Edinburgh, Scotland, he won a bronze medal in the 100 metres butterfly.