Maddie's Do You Know? (originally known as simply Do You Know? for its first two series) is a British children's television series, produced by Banijay Group subsidiary 7 Wonder for the BBC channel CBeebies, and presented by Maddie Moate. A third series aired in 2019, followed by a fourth in April 2020 running until September 2020. Maddie's Do You Know? is also available on BBC iPlayer for over a year.