Martha Collison (born 23 September 1996) is a British baker and food columnist. She rose to fame after competing as The Great British Bake Off's youngest ever contestant,^[1] reaching the quarter-final of the fifth series at age 17. She writes a weekly column for the Waitrose weekend newspaper,^[2] and has released two cookery books as well as running a successful baking blog.

Martha Collison grew up in Ascot, Berkshire.^[3] She has one younger sister, Hannah.^[3] She began baking at the age of eight, the result of her parents letting her loose in the kitchen.^[4]

Martha lives with her husband in Brighton, Sussex. They married in 2019, where several of the bakers from Collison's series of The Great British Bake Off were in attendance and baked cakes for a cake table.^[12]

She is a Christian^[1] and has appeared at various faith-based festivals such as Newday, Big Church Day Out South & North and WestPoint. She is also a charity ambassador for the charity Tearfund,^[13] and has spent time in Cambodia teaching young girls to bake funnel cakes.^[14] She has also been to refugee camps in Lebanon with the charity to see Tearfund's work with those displaced due to conflict.^[15]

Her grandmother, Valerie Collison, is an English organist and composer of hymns and carols. Her best-known work is "Come and Join the Celebration" for which she composed both the lyrics and tune.