Born in Jersey, Channel Islands, Jenny Lecoat's parents were raised under German Occupation, and both families were involved in resistance activity. Lecoat moved to England aged 18, where, following a drama degree, she spent a decade on the alternative comedy circuit as a feminist stand-up. She was nominated for a prestigious Perrier Award in 1986. Jenny also wrote for newspapers and women's magazines (Cosmopolitan, Observer) and presented TV and radio shows, before focusing on screenwriting from sitcom (Birds of a Feather, Sometime Never) to sketch shows (The Catherine Tate Show).

The Girl from the Channel Islands (initially published as The Viennese Girl) was her first novel and was a New York Times bestseller.