Wynona Bleach are an alternative rock band from Belfast, Ireland.

Formed in January 2018, Wynona Bleach emerged after a 12-Date Russian headline tour under their former name, R51. Prior to this, they had played BBC Introducing stages at Reading and Leeds festivals, supported Feeder, and performed at a televised anniversary of BBC Introducing in Northern Ireland - a sold-out show at the Ulster Hall alongside Therapy?, SOAK, Villagers and The Divine Comedy.