37°34′52″N 21°40′17″E / 37.580979°N 21.671355°E Styllangium, Styllangion, or Stylangion (Ancient Greek: Στυλλάγγιον and Στυλλάγιον) was a town of Triphylia in ancient Elis.
Its site is tentatively located near modern Gryllos.
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "E Styllangium". Dictionary of Greek and Roman Geography. London: John Murray.