John Gavin "Mulguy" Bone (17 September 1914 – 23 June 1983) was a Scottish amateur cyclist who competed in the Cycling at the 1936 Summer Olympics in Berlin.

In 1935 he set new Scottish and British records with a total distance of 244¾ miles in 12-hours. He went on to become the first Scotsman to figure in the British Best All-Rounder list of prize winners when he was classified tenth with an average speed of 21.303 m.p.h. His early achievements were celebrated in 1936 when Cycling Weekly awarded him his own page in the Golden Book of Cycling. In 1937 at Alexandra Palace he won the 'first televised cycle race in the UK' - the Sunday Pictorial Cycling Festival.