Gerso Fernandes (born 23 February 1991), known as Gerso (Portuguese: ), is a Bissau-Guinean footballer who plays for American club Sporting Kansas City as a left winger.
Born in Bissau, Gerso moved to Portugal in his early teens, joining C.F. União de Coimbra's youth system in 2004 at age 13. As a junior, he signed with neighbouring Académica de Coimbra where he went on to complete his formation; he did not play football for two years during his formative spell, after a priest from the charity facility where he was living advised him against the dangers of turning professional.
Gerso made his debut as a senior with G.D. Tourizense in the third division, who acted as Académica's farm team. Released in summer 2011, he moved to G.D. Estoril Praia in the second level, contributing with 20 scoreless appearances in his first season as the club returned to the Primeira Liga after seven years.