William Milne (23 March 1852 – 16 March 1923) was a British sport shooter who competed at the 1908 Summer Olympics and the 1912 Summer Olympics. In the 1908 Summer Olympics he participated in the following events: * disappearing target small-bore rifle - fourth place * moving target small-bore rifle - seventh place * stationary target small-bore rifle - 14th place Four years later in 1912 he won the silver medal in the 50 metre rifle, prone as well as with the British team in the team 25 metre small-bore rifle competition. In the individual 25 metre small-bore rifle event he finished 22nd.