Tikal is the largest of the ancient ruined cities of the Maya civilization. Tikal may also refer to: Tikal the Echidna, a character in Sega's Sonic the Hedgehog series Tikal (board game) , an Irish Sea ferry Tikal (surname) See also Tical (disambiguation) TiHKAL, a 1997 book Alexander Shulgin and Ann Shulgin Tilak, a forehead mark