Gigglebiz is a British children's comedy television programme (described as a 'live-action comedy sketch show' by the BBC) consisting of five series that have been broadcast on CBeebies, the BBC's younger children's channel, starting in 2009.

The TV series was starred and created by Justin Fletcher, who plays the lead character in all of the comedy sketches and also wrote a few sketches in its first series. Some of the sketches are filmed in the studio, while other sketches are filmed outside; for example, one is filmed at Portmeirion, used for the fictional town of Wiggyville where Captain Adorable's sketches are set from Series 1 to 2. The show is interspersed with a selection of children called the Gigglekids, who tell jokes to Justin himself, in their own section called 'Giggle Box'.

In many episodes, there is also ‘Silly Time’, where Justin says "It's Silly Time!", then some of the other characters dance to music. In one scene during this, four characters are shown dancing at once. Silly Time doesn't happen in every episode however.