Hämäläisten jumala, jota on pidetty sekä sodajumalana että vedenhaltijana. Tursaalla on ollut myös useita kirjoitusasuja, kuten Turisas, Turilas ja Turri.
Uskoisin, että hämäläisten Tursas on ollut sama kuin muinaisskandinaavien Tyr:
Tyr (Old Norse: Týr) is the god of single combat and heroic glory in Norse mythology, portrayed as a one-handed man. In the late Icelandic Eddas, he is portrayed, alternately, as the son of Odin (Prose Edda) or of Hymir (Poetic Edda), while the origins of his name and his possible relationship to Tuisto (see Tacitus' Germania) suggest he was once considered the father of the gods and head of the pantheon. Corresponding names in other Germanic languages include Tyz (Gothic), Ty (Old Norwegian), Ti (Old Swedish), Tiw, Tiu, Tio, and Tig (Old English) Týr (Modern Icelandic and Faroese), Ziu and Zio (Old High German), and possibly, even Teiw (in lith. tevas, tevs - father; dievas, deive - god) in Proto-Germanic, i.e., the Negau helmet.
The name Tyr meant "god" (cf. Hangatyr, the "god who hung" (referring to when Odin hung in a tree for nine days) as one of Odin's names; probably inherited from Tyr in his role as judge--compare with the Irish "Midir", the judge par excellence) and goes back to a Proto-Germanic Tîwaz, earlier Teiwaz, continuing Proto-Indo-European *deywos "god", a word related to but distinct from the name of the sky-god Dyeus (in lith. both Dyeus and Deywos has the same meaning Dievas or god, but Deives means the goddess).
Tyristä sanotaan, että nimi juontuisi kantagermaanisesta sanasta Teiwaz. Voisikohan Hämeen latinankielinen nimi Tavastia olla samaa perua?