Lewis John Cook (born 3 February 1997) is an English professional footballer who plays as a defensive midfielder for Premier League club AFC Bournemouth.

[8] After breaking into the team during the 2014–15 pre-season, Cook made his first-team debut for Leeds United in the first match of the season, coming on as a 64th-minute substitute against Millwall.

[9] Cook became one of the first names on the teamsheet for Leeds, becoming part of a homegrown contingent in the first team alongside Sam Byram, Alex Mowatt and Charlie Taylor.

[11][12] On 9 April 2015, after rumoured Premier League interest in Cook and teammates Sam Byram, Alex Mowatt and Charlie Taylor, head coach Neil Redfearn challenged Leeds United's owners to keep a hold of their home-grown talents.

[23] On 15 June 2016, Leeds owner Massimo Cellino stated he had entered into talks with Cook's agent about extending the player's contract.

[citation needed] On 8 July 2016, Cook signed for Premier League club AFC Bournemouth on a four-year contract for an undisclosed fee.

[28] In March 2015, Cook was called up to Sean O'Driscoll's under-19 team to play Denmark, Azerbaijan and France in the last three remaining European Under-19 Championship qualifiers.

[30] Cook had to withdraw from the squad having suffered an ankle injury against Azerbaijan, meaning he missed the match against France as the team looked to secure a place at the tournament in Greece.

[31] He was withdrawn from the squad for the 2016 UEFA European Under-19 Championship by his club manager Garry Monk, who wished to work with the player for a full pre-season.