Leonid Alexeyevich Nechayev (Russian: Леони́д Алексе́евич Неча́ев; 3 May 1939 – 24 January 2010) was a Russian children's film director.

Nechayev's career as director was launched in 1974 with a film called Adventures in a City that does not Exist. He was also the creator of the popular musical fairy tales About The Little Red Riding Hood and The Adventures of Buratino. He was a prolific director at the studio Belarusfilm, where he worked for 17 years and shot 10 films. The Minsk Museum of Cinema has a hall exclusively dedicated to his creative legacy.