Boulaye Dia (born 16 November 1996) is a professional footballer who plays as a forward for Serie A club Lazio, on loan from Salernitana.

Dia signed a professional contract with Reims on 16 July 2018 after a successful debut season with Jara Sud, where he scored 15 goals in 21 games.

On his first official debut for Villarreal, which was against Chelsea in the 2021 UEFA Super Cup, he received lots of praise for his fine display.

[10] He 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.

[13] Dia started all four of Senegal's matches at the 2022 FIFA World Cup, scoring the opening goal of a 3–1 win over hosts Qatar, as the nation reached the round of 16 for the first time since its debut in 2002.