Cnemis or Knemis (; ) was a range of mountains forming the boundary between Phocis and the Epicnemidian Locrians, who received their distinguishing name from this mountain. Mount Cnemis was a continuation of Callidromus, with which it was connected by a ridge, at the foot of which is the modern village of Mendenitsa. A spur of this mountain, running out into the sea, formed the promontory Cape Cnemides (Κνημῖδες), opposite the islands called Lichades and the Euboean promontory Cenaeum. Upon Cape Cnemides stood a fortress, also called Cnemides (or Cnemis), distant 20 stadia from Thronium.