Sufax (also Sophax, Syphax or Sufaqs like in the name of the current city Sfax, Tunisia) was a hero from the Berber and Greek mythologies.

According to the myth, he is the son of Tinjis from her second marriage to Hercules, and the grandson of Poseidon and Gaia. According to the myth, Sufax replaced Antaeus as a guard of the country of the Berbers (or Imazighen). He is said to be the founder of Tangier in memory to his mother.

According to the Berber mythology, many of the Berber kings are descendents of Suphax who defended their lands after defeating his enemy Antaeus. He had a son, Diodorus, who reigned over many North African Berber tribes with the help of the Olympians.

According to the Ancient Greek historian Plutarch, many of the myths were created in order to give credits to the Numidian king Juba II who considered himself a descendent of Diodorus and Hercules.