Laetitia Denis (born 4 February 1988 in Yaoundé, Cameroon) is a French athlete specializing in the 400 metres hurdles.

A versatile athlete, she made her debut in the heptathlon by finishing sixth of the 2005 Cadet World Championships with a total of 5402 points. She won in 2006 the junior national titles in the 400m hurdles and the 60m hurdles, and became vice-European champion in the 110m hurdles in 2007. Junior champion of France at the 110m hurdles in 2008, she won the bronze medal in the relay 4 × 400 m at the 2009 Summer Universiade.

In March 2011, Laetitia Denis won the relay bronze medal for the 4 × 400 m at the European Indoor Championships in Paris-Bercy alongside Muriel Hurtis-Houairi, Floria Gueï and Marie Gayot. The French team ran a time of 3 min 32 s 16 losing that day to Russia and the UK .^[1]