Stephen Milne (born 29 April 1994) is a Scottish swimmer who competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil.

[8][9] In the final of the 4 × 200-metre freestyle relay he competed alongside Daniel Wallace, Duncan Scott and Robert Renwick as the Scottish quartet won the silver medal behind Australia.

[13][14] He won the silver in the 400 metres freestyle at the 2016 British Championships, setting a new personal best time of three minutes 46.53 seconds in the final.

[16] Milne was selected as part of the 26-member swimming squad for the Great Britain team at the 2016 Summer Olympics held in Rio de Janeiro, Brazil where he competed in the men's 400-metre and 1500 metre freestyle events, finishing 13th and 10th respectively.

[21] At the 2018 Commonwealth Games held at the Gold Coast, Australia, Milne won two bronzes as part of the Scottish team that finished third in the Men's 4 × 100 m and 4 × 200 m freestyle events.