Aly Cissokho (born 15 September 1987 in Blois) is a French football player of Senegalese descent who plays for La Liga club Valencia CF. He plays as a left back and has been described as a "sprightly left-back with good speed and stamina".

Cissokho began his career playing for local clubs within his hometown, such as Blois Foot 41. In 2004, he signed with professional club FC Gueugnon and spent three years in the club's youth system before making his debut in the 2006–07 season. Cissokho spent only one season at the club and, in June 2008, signed with Portuguese club Vitória de Setúbal in the Portuguese Liga. After spending only half the season with the club, Cissokho departed Vitória for the league's defending champions Porto. With Porto, Cissokho won the Portuguese league and cup double and played in the UEFA Champions League for the first time. In July 2009, after a failed transfer attempt to Italian club Milan, he signed a five-year contract with French club Lyon for a fee of €15 million.

Cissokho is also a French international and earned his first call-up to the team in November 2009. He made his senior debut a year later in August 2010 in a friendly match against Norway.

On 23 August 2012, Valencia CF announced on their official website they had completed a deal to sign Cissokho for the next four seasons., for €5 million and €1 million variable and a portion of future transfer fee Valencia received. He made his official debut against FC Barcelona, at an eventual 1-0 away loss . On 15 September, Cissokho's 25th birthday, he scored his first goal, which also turned out to be the winning goal, for Valencia in a 2-1 win over Celta Vigo at Mestalla.