Gnaly Albert Maxwel Cornet (born 27 September 1996) is an Ivorian professional footballer who plays as a left winger and full-back for Serie A club Genoa, on loan from West Ham United, and the Ivory Coast national team.

Aged 15 years and 11 months, he made his debut for Metz in the third-tier of French football, the Championnat National in a game on 31 August 2012.

[7] In January 2020, Cornet was tested at the left-back position by Lyon's coach Rudi Garcia following the injuries of Youssouf Koné and Fernando Marçal.

On 15 August 2020, Cornet scored a goal against Manchester City in the 2019–20 UEFA Champions League quarter-finals which Lyon won 3–1 and progressed to the semi-finals.

[12] On 5 August 2022, Cornet joined West Ham United, signing a five-year contract with a further one-year option, for an undisclosed fee from Burnley.

Cornet also made seven appearances during West Ham's successful 2022–23 UEFA Europa Conference League campaign, though he was an unused substitute in the final victory over Fiorentina.