Týr (Old Norse: Týr) is a deity associated with war, justice, and single combat, attested in the Poetic and Prose Eddas and in place-name evidence across the Germanic world. His name is cognate with Proto-Germanic *Tīwaz and the Proto-Indo-European deity name *Dyeus, connecting him linguistically to sky-father figures such as Greek Zeus and Latin Jupiter. Tuesday is named for Týr across the Germanic languages.

Týr’s most celebrated mythological episode is his sacrifice of his right hand to the wolf Fenrir. When the Æsir decided to bind Fenrir using the magical fetter Gleipnir, Fenrir agreed only if one of the gods placed their hand in his mouth as a pledge. Týr alone was willing. When Fenrir found himself unable to break free, he bit off Týr’s right hand. This myth is recounted in Gylfaginning and referenced in Lokasenna (st. 38). The episode encodes principles of oath-keeping and judicial sacrifice.

Týr appears in Sigrdrífumál as one of the deities whose name is invoked on runes for victory. Snorri describes him in Gylfaginning as the bravest of the Æsir and the one who governs victory in battle. Place-name evidence supports an early and geographically broad cult: Tissø in Denmark (Týs-sø, Týr’s lake) has yielded significant archaeological assemblages of ritual deposits consistent with a cult center.