Verethragna or Bahram (𐬬𐬆𐬭𐬆𐬚𐬭𐬀𐬖𐬥𐬀 vərəθraγna) is an Indo-Iranian deity.
The neuter noun verethragna is related to Avestan verethra, 'obstacle' and verethragnan, 'victorious'. Representing this concept is the divinity Verethragna, who is the hypostasis of "victory", and "as a giver of victory Verethragna plainly enjoyed the greatest popularity of old." In Zoroastrian Middle Persian, Verethragna became 𐭥𐭫𐭧𐭫𐭠𐭭 Warahrām, from which Vahram, Vehram, Bahram, Behram and other variants derive.
The word has a cognate in Vedic Sanskrit. The Vedic god Indra may correspond to the Verethragna of the Zoroastrian Avesta; In Vedic Sanskrit vr̥traghná- is predominantly an epithet of Indra, which corresponds to the noun verethragna- of Avestan.
The name and, to some extent, the deity was borrowed into Armenian Վահագն Vahagn and Վռամ Vṙam, and has cognates in Buddhist Sogdian 𐫇𐫢𐫄𐫗 wšɣn w(i)šaɣn, Manichaen Parthian 𐭅𐭓𐭉𐭇𐭓𐭌 wryḥrm Wahrām, Kushan Bactrian ορλαγνο Orlagno. While the figure of Verethragna is highly complex, parallels have also been drawn between, Puranic Vishnu, Manichaean Adamas, Chaldean / Babylonian Nergal, Egyptian Horus, Hellenic Ares and Heracles.
Yasht 14, the hymn of praise to Verethragna, "though ill-preserved, contains what seem very archaic elements". There, Verethragna is described as "the most highly armed" (Yasht 14.1), the "best equipped with might" (14.13), with "effervescent glory" (14.3), has "conquering superiority" (14.64), and is in constant battle with men and daemons (14.4, 14.62).
Verethragna is not exclusively associated with military might and victory. So, for instance, he is connected with sexual potency and "confers virility" (Yasht 14.29), has the "ability to heal" (14.3) and "renders wonderful". The Yasht begins with an enumeration of the ten forms in which the divinity appears: As an impetuous wind (14.2-5); as an armed warrior (14.27) and as an adolescent of fifteen (14.17); and in the remaining seven forms as animals: a bull with horns of gold (14.7); a white horse with ears and a muzzle of gold (14.