Fabrice-Alan Do Marcolino (born 19 March 2002) is a Gabonese professional footballer who plays as a forward for Czech National Football League club Viagem ÃÂstÃÂ nad Labem and the Gabon national team.
Born in Libreville, Gabon, Alan is the son of Gabonese international Fabrice Do Marcolino. He is the nephew of Arsène Do Marcolino, Fabrice's brother who also played for Gabon. Alan's brother Henrick and cousin Jonathan (Arsène's son) both play in the Rennes academy.
Do Marcolino joined the Rennes academy from Laval in 2017, signing his first professional contract with the club from Rennes in April 2022.
On 8 August 2025, Do Marcolino signed a three-year contract with Lusitânia in Portugal.
Do Marcolino made his international debut for Gabon on 5 June 2022.