Ismaïla Sarr (born 25 February 1998) is a Senegalese professional footballer who plays as a winger or forward for Premier League club Crystal Palace and the Senegal national team.

[10] On 28 September, it was announced by coach Christian Gourcuff that Sarr's injury would require surgery that would prevent him from playing until 2018.

[11] Sarr ended the season with five goals and five assists from 24 Ligue 1 appearances[9] as Rennes finished in fifth place and qualified for the 2018–19 UEFA Europa League.

[12] During the 2018–19 season, Sarr made his UEFA Europa League debut, scoring the opening goal of a 2–1 against Czech club FK Jablonec on 20 September 2018.

[19] On 2 April, he assisted Senegalese teammate M'Baye Niang's opening goal in an eventual 3–2 semi-final win against Lyon.

[24] Sarr made his debut for Watford as a substitute in a 3–1 Premier League defeat to West Ham United at Vicarage Road on 24 August 2019.

[25] Three days later, on his first start for Watford, he scored his first goal in English football in an EFL Cup tie against Coventry City.

[28][29] On 29 February 2020, Sarr scored twice and assisted Deeney's third goal in Watford's 3–0 home victory over defending European Champions Liverpool, handing them their first defeat of the 2019–20 season and ending the club's 44-match unbeaten league run.

[30] On 26 July, Watford were relegated to the EFL Championship after losing 3–2 to Arsenal at the Emirates Stadium in their final match of the season.

[52] On 8 January 2017, Sarr scored his first international goal in a friendly match against Libya in Stade Municipal de Kintélé, Brazzaville.

[55] Sarr was part of Senegal's squad for the 2021 Africa Cup of Nations; the Lions of Teranga went on to win the tournament for the first time in their history.

[59] Sarr started all four of Senegal's matches at the 2022 FIFA World Cup, scoring in a 2–1 win over Ecuador that qualified the nation for the round of 16 for the first time since its debut in 2002.

[60] In December 2023, he was named in Senegal's squad for the postponed 2023 Africa Cup of Nations held in the Ivory Coast.