Aytaç Sulu (born 11 December 1985 in Heidelberg, Germany) is a Turkish-German football defender currently playing for Samsunspor in the Turkish TFF Second League.
In his youth, Sulu played for FV Nußloch, SG Heidelberg-Kirchheim and SV Sandhausen. In the 2004/2005 seasonm, he came into the first team of SV Sandhausen. He then moved to Bahlinger SC, from Verbandsliga Baden and got them promoted in the season he arrived. He became a true professional footballer with 1899 Hoffenheim, making most of his appearances for the second team.
In 2009, he reunited with Rainer Scharinger at VfR Aalen, whom was his coach with Sandausen, and Hoffenheim. He captained the team, and got them promoted into the 3. Liga. After a contract standoff, he left on a free transfer to the Turkish team, Gençlerbirliği. Due to his Turkish passport, he did not count as a foreign player for the team, but he only made a couple of appearances for the team. Following an unsuccessful year, he left the Turkish club on a free transfer. He again reunited with Scharinger who then managed the Austrian team SCR Altach, but lasted a couple of months before transferring in 2013 to SV Darmstadt 98.