Louis Cosyns (born 29 September 1952 in Saint-Amand-Montrond) was a member of the National Assembly of France. He represented Cher's 3rd constituency from 2002 to 2012, as a member of the Union for a Popular Movement.
On 26 May 2017, while running for the 3rd constituency of Cher, he collided with a motorist in Blet, killing her instantly. He then withdrew from the campaign, declaring that he only wanted to devote himself to his mandate as mayor of Dun-sur-Auron.