Ersen Martin (born 23 May 1979 in Marktredwitz, West Germany) is a Turkish footballer who plays for Gençlerbirliği as a centre forward.
Born in Germany, Ersen started playing in 1. FC Nuremberg, his Bundesliga debut consisting in 20 minutes in a 0–1 loss at SC Freiburg, in 1998–99. After that sole season and appearance, he switched to Turkey, going on to represent Beşiktaş JK, Siirtspor (loan), Göztepe AS, Denizlispor and Ankaraspor.
In 2006–07, Ersen represented Trabzonspor, finishing the season as the league's eighth best-scorer and helping his side finish fourth, good enough for a UEFA Cup berth. Subsequently, he had everything arranged with La Liga outfit Recreativo de Huelva in August 2007, but the deal eventually collapsed and he stayed at Trabzonspor. In October, FIFA stepped in and declared Ersen a player of the Spanish club. He had dual citizenship, but that status changed with 2007 changes in German laws and so, he eventually played his first season for the Andalusians as a foreign player.
On 3 February 2008, Ersen finally made his Recreativo debut, on a sour note, as Sevilla FC won 2–1 away, and the Turkish was sent off for a reckless challenge, after just eight minutes