Randy Johnston (born June 2, 1958 in Brampton, Ontario) is a retired Canadian professional ice hockey defenceman who played four games in the National Hockey League for the New York Islanders.
He played junior hockey for the Peterborough Petes from 1975 to 1978. The New York Islanders chose him 34th overall in the 1978 NHL Amateur Draft.
Johnston turned pro in 1978-79 with the Fort Worth Texans. In 1979-80 he was moved to the Indianapolis Checkers and was called up for four games with the Islanders. Unfortunately for Johnston, the Islanders were just the NHL's most powerful club and winning the first of four straight Stanley Cups. It was an extremely tough lineup to crack.
He played four seasons for the Checkers, winning the Adams Cup in the last two. Johnston retired in 1983.