Tweenies is a British live-action puppet children's television series created by Will Brenton and Iain Lauchlan. The programme was focused on four preschool-aged characters, known as the "Tweenies"; Bella, Milo, Fizz & Jake, whilst playing, singing, dancing and learning in a fictional playgroup based in England. They are cared for by two adult Tweenies; Max & Judy and their dogs; Doodles and Izzles.

Tweenies first premiered on September 6th, 1999 on the BBC's children's block and consisted of a total of 390 episodes, with the final episode airing on July 25th, 2002. Repeated episodes of the series aired on CBeebies from 2002 to 2016. In 2000, the show won a British Academy Television Award for Best Pre-school Live Action Series, and singles featuring exclusive songs spent several weeks in the charts during the early 2000s.

Tweenies also released music in the early 2000s and achieved five top 20 singles on the UK Singles Chart.