Choma () was a Byzantine fortress in central Anatolia, which played an important role in the fight against the Seljuk Turks in the late 11th and 12th centuries. Choma was located in the upper valley of the Maeander River in Phrygia. After the Battle of Manzikert, it became an isolated Byzantine outpost surrounded by Turkish-controlled territory. Its troops, the so-called Chomatenoi (Χωματηνοί), figure frequently in the campaigns of Nikephoros III Botaneiates (r. 1078–1081) and Alexios I Komnenos (r. 1081–1118). Due to its strategic location on one of the roads leading to the interior of Anatolia, it became a major base of operations for the Komnenian emperors' campaigns to push back the Turks. In the 12th century, it formed its own district, that of "Choma and Cappadocia", under a toparche