On 2 February 2018, Thauvin scored another hat-trick in a 6–3 home win over Metz. He won two more Player of the Month awards for November and February, and finished the 2017–18 Ligue 1 season with 22 goals, behind only PSG's Edinson Cavani for top scorer. He was one of four candidates for the Player of the Season award, that ultimately went to the Parisians' Neymar. In the season's Europa League, he contributed four goals in fourteen games for the team, who lost the final to Atlético Madrid in Lyon.