Lydia Suzanne White (born 18 February 1997) is an English actress, singer, and vocal coach. She is known for her work in musical theatre.

White was born in the East London Borough of Waltham Forest and grew up in Saffron Walden, Essex. She attended the local High school and then completed her A Levels at Hills Road Sixth Form College in Cambridge.^[2] She also took a weekend West End Masterclass. In 2015, White was a finalist in the Stephen Sondheim Society Student Performer of the Year competition.^[3] She earned an Andrew Lloyd Webber Foundation scholarship^[4] to study at the Royal Conservatoire of Scotland, graduating in 2018 with a Bachelor of Arts in Musical Theatre.^[5]

White made television debut in an episode of the BBC Three series Clique in 2018.^[6] This was followed by her professional stage debut in 2019 as Bella in the UK premiere of the musical Rags at the Hope Mill Theatre in Manchester, working with Bronagh Lagan.^[7] She also appeared in CinderELLA at the Nuffield Theatre, Southampton. She was then an understudy for Molly Lynch's Cathy in The Last Five Years at Southwark Playhouse in early 2020.^[8]

In 2021, White starred as Jo March in the UK premiere of the Little Women musical adaptation at the Park Theatre in London, reuniting with Bronagh Lagan alongside Hana Ichijo, Anastasia Martin, and Mary Moore as the other March sisters.^[9][10] In 2022, she appeared in Whistle Down the Wind at the Watermill Theatre and A Christmas Carol at the Old Vic. In 2023, she joined the West End cast of Matilda the Musical at the Cambridge Theatre as Miss Honey.^[11][12]