Alcapha ( ancient Greek Ἀλκάθοος ) is a character in ancient Greek mythology, from Aetolia  . Son of Porphion and Hebrews. According to one version, he was killed by Tydey  . According to others, Tydea's cousin, killed by him  . According to one of the Elean versions, Enomay was killed for matchmaking for Hippodamia and buried on the hippodrome, his grave was named Taraksipp . According to the "Great Eoyas"  , he was the second fiancé of Hippodia  .
- Pseudo-Apollodor. Mythological library I 7, 10; 8, 5
- Hesiod. The list of women, fr.10, p. 53 M.-U.
- Diodorus Sicilian. Historical Library IV 65, 2
- Hesiod. Great Eoi, fr.259 M.-U.
- Pausanias. Description of Hellas VI 20, 17; 21, 10