Esthero (/ɛsˈtɛroʊ/ es-STAIR-oh; born on December 23, 1978 in Stratford, Ontario), born Jenny-Bea Englishman, is a Canadian singer-songwriter who currently lives in Los Angeles, California. The name Esthero refers both to the singer and formerly to the two-person team of herself and producer Doc McKinney. Esthero is a portmanteau of "Esther the hero". She claims to have gotten the name by combining the name of the heroine (Esther) and last line ("If I am to be the hero, then I cannot fly from darkness.") of the movie from Sylvia Plath's novel, 'The Bell Jar'.

Esthero's sound characteristically features her voice over a mix of mellow bass lines, jazzy trumpets, Spanish guitar and hip-hop. She is sometimes compared to artists Björk, Portishead and Sade. Later female artists who count Esthero among their influences include Res, Fergie and fellow Canadian Nelly Furtado.