Jenny Colgan (born 14 September 1972 in Prestwick, Ayrshire, Scotland) is a writer of romantic comedy fiction and science-fiction. She has written for the Doctor Who line of stories. She writes under her own name and using the pseudonyms Jane Beaton and J. T. Colgan.

She won the Romantic Novel of the Year award in 2013 for Welcome to Rosie Hopkin's Sweetshop of Dreams and the Romantic Novelists' Association award for Comedy Novel of the Year in 2018 for The Summer Seaside Kitchen.