Robert Lynn "Bobby" Cairns (25 December 1927 – 4 January 1958) was an English footballer who played as a full-back.
Cairns began his football career as an amateur with Sunderland before joining Gateshead in 1948.
He made 139 appearances in the Football League Third Division North and 10 appearances in the FA Cup before leaving the club in 1957.
He was working as a joiner at the West Sleekburn Colliery when a cage fell from a hoist on him, killing him.
This biographical article related to association football in England, about a defender born in the 1920s, is a stub.