Brunhilde, also known as Brynhildr, may refer to:
- The weapon from Final Fantasy X.
- The enemy from Final Fantasy XI.
- The summon from Final Fantasy XIII.
- The weapon from Final Fantasy Airborne Brigade.
Brynhildr is a shieldmaiden and a valkyrie in Germanic mythology, where she appears as a main character in the Völsunga saga and some Eddic poems treating the same events. Under the name Brünnhilde she appears in the Nibelungenlied and therefore also in Richard Wagner's opera cycle Der Ring des Nibelungen.