Helen Arney is a British physicist, presenter, stand-up comedian and musician. She has toured with the Uncaged Monkeys alongside comedian Robin Ince and Professor Brian Cox. Described as a "geek songstress" by the Edinburgh Reporter, Arney plays the ukulele as one third of the Festival of the Spoken Nerd, accompanied by stand-up mathematician Matt Parker and television scientist Steve Mould. She and Parker are also commentators on nearly every episode of You Have Been Warned (Outrageous Acts of Science).