François Joseph Marie Antoine Blanchy, best known as François Blanchy (French pronunciation: ?[f??~swa bl?~?i]; 12 December 1886 – 2 October 1960) was a tennis player competing for France.
He competed at the 1912 Summer Olympics and the 1920 Summer Olympics.Runner-up to Maurice Germot in the singles final of the Amateur French Championships in 1910, Blanchy eventually won the title in 1923 over eight-time champion Max Decugis.
He also won the doubles title at the tournament in 1923, partnering Jean Samazeuilh.
Blanchy later became a sports official, directing the Villa Primrose (Bordeaux tennis club), and the French Tennis Federation.