Catherine Jane Smith is a British Labour Party politician who served as Member of Parliament (MP) for Lancaster and Fleetwood from 2015 until 2024 when the constituency was abolished, and was elected in the 2024 general election to the new constituency of Lancaster and Wyre. She was a member of the shadow cabinets led by Jeremy Corbyn and Keir Starmer from 2016 to 2021 as Shadow Secretary of State, previously Shadow Minister, for Young People and Democracy.