31st AVN Awards was an event during which Adult Video News (AVN) presented its annual AVN Awards to honor the best pornographic movies and adult entertainment products of 2013.

The ceremony was held January 18, 2014, at The Joint in the Hard Rock Hotel and Casino, Paradise, Nevada. Movies or products released between October 1, 2012, and October 7, 2013, were eligible. Comedian/actress Rebekah Kochan and adult movie actresses Chanel Preston, who was co-winner of "Most Outrageous Sex Scene", and Samantha Saint hosted the AVN Awards. The awards show was held immediately after the Adult Entertainment Expo at the same venue.