Taskmaster is a British comedy panel game show created by comedian and musician Alex Horne and presented by both Horne and Greg Davies. In the programme, a group of five celebrities – mainly comedians – attempt to complete a series of challenges, with Horne acting as umpire in each challenge and Davies, the titular "Taskmaster", judging the work and awarding points based on contestants' performances. The concept for the programme was first created by Horne for the Edinburgh Festival Fringe in 2010; he later secured a deal with Dave to adapt it for television with the first episode premiering in 2015. After the ninth series in 2019, the programme was acquired by Channel 4. The programme has completed eighteen series as well as three Champion of Champions specials and five New Year Treat one-offs by January 2025, and is set to continue for at least three more series until 2026.

Taskmaster proved a success on British television, spawning international versions in Australia, Belgium, Croatia, Denmark, Finland, New Zealand, Norway, Portugal, Canada (Quebec), Sweden, Spain and the United States. A British spin-off series, Junior Taskmaster, premiered on Channel 4 on 8 November 2024, Additionally, a tie-in board game, two books, and a VR game have been released. During the COVID-19 pandemic, Horne hosted #HomeTasking, a series of tasks for people to film in their own homes; for each task, a montage of attempts was posted on YouTube that featured Davies awarding points to his favourite entries.