Junior Bake Off is a British television baking competition in which young bakers aged 9 to 12 tackle a series of challenges involving baking cakes, biscuits, bread, and pastries, competing to be crowned Junior Bake Off Champion.

The series debuted in 2011 as a spin-off from The Great British Bake Off and is also produced by Love Productions. Four series of Junior Bake Off were broadcast on CBBC from 2011 to 2016. Following its parent series' departure from the BBC in 2017, Junior Bake Off resumed with a fifth series in 2019 on Channel 4, with comedian Harry Hill as presenter and Prue Leith and Liam Charles as judges. The fifth series concluded on 22 November 2019. The show returned for a sixth series on 11 January 2021. Junior Bake Off returned Monday 10 January 2022 for its seventh series and concluded on 28 January 2022. Junior Bake Off returned on 16 January 2023 for its eighth series and will conclude on 3 February 2023. On 5 January it was announced that Junior Bake Off has been renewed for its tenth series to air in 2025.