'''ウルスラグナ'''(Vərəθraγna)とは、ゾロアスター教において崇拝される英雄神。θraγna)とは、ゾロアスター教において崇拝される英雄神<ref name="Kuehn2011">Sara Kuehn, The Dragon in Medieval East Christian and Islamic Art: With a Foreword by Robert Hillenbrand, https://books.google.com/books?id=AZWgdBCgmLYC, 12 July 2011, BRILL, isbn:978-90-04-18663-7, page103</ref><ref name="Fragner1995">Bert G. Fragner, Proceedings of the Second European Conference of Iranian Studies: Held in Bamberg, 30th September to 4th October 1991, by the Societas Iranologica Europaea, https://books.google.com/books?id=-y46AQAAMAAJ, 1995, Istituto italiano per il Medio ed Estremo Oriente</ref>。
'''Verethragna''' ({{lang-ae|𐬬𐬆𐬭𐬆𐬚𐬭𐬀𐬖𐬥𐬀}} ''{{lang|ae-Latn|vərəθraγna}}'') is an [[Indo-Iranians|Indo-Iranian]] deity.<ref name="Kuehn2011">{{cite book|author=Sara Kuehn|title=The Dragon in Medieval East Christian and Islamic Art: With a Foreword by Robert Hillenbrand|url=https://books.google.com/books?id=AZWgdBCgmLYC|date=12 July 2011|publisher=BRILL|isbn=978-90-04-18663-7|page=103}}</ref><ref name="Fragner1995">{{cite book|author=Bert G. Fragner|title=Proceedings of the Second European Conference of Iranian Studies: Held in Bamberg, 30th September to 4th October 1991, by the Societas Iranologica Europaea|url=https://books.google.com/books?id=-y46AQAAMAAJ|year=1995|publisher=Istituto italiano per il Medio ed Estremo Oriente}}</ref>
The neuter noun ''verethragna'' is related to Avestan ''verethra'', 'obstacle' and ''verethragnan'', 'victorious'.{{sfn|Gnoli|1989|p=510}} Representing this concept is the divinity Verethragna, who is the [[Hypostasis (linguistics)|hypostasis]] of "victory", and "as a giver of victory Verethragna plainly enjoyed the greatest popularity of old."{{sfn|Boyce|1975|p=63}} In Zoroastrian Middle Persian, Verethragna became 𐭥𐭫𐭧𐭫𐭠𐭭 Warahrām, from which Vahram, Vehram, Bahram, Behram and other variants derive.