Çaka Bey Bey or Cakan ( * ca 1040, † 1092 ) was a Seljuk Bey and pirate in the 11th century. His name is Old Turkish origin and means on the German gentleman who uses the battle ax. He belonged to the Turkmen Oghusenstamm Çavuldur.

After the Battle of Manzikert in 1071 he was commissioned by Alp Arslan Western Anatolia to conquer. In his campaigns he was captured by the Byzanztinern. After he had spent some time in Byzantine captivity, he obtained approximately 1081 control of Izmir. He built the first Turkish fleet on and off piracy he conquered Byzantine various islands, including Samos, Chios and Mitylene. Çaka Bey claimed the Byzantine imperial title for themselves ( in Asia Minor ).

He married his daughter to the Seljuk Sultan Kılıç Arslan I.. According to Byzantine sources made ​​him this but murder in 1092. The Byzantines under Alexius I could shortly thereafter reclaim its controlled Çaka Bey area.