Rachel Riley (b. 1986) is a British television presenter, best known for co-hosting the game show Countdown and its comedy spin-off 8 Out of 10 Cats Does Countdown.
On May 12, 2019, Riley appeared with Cookie Monster and Gonger in a web video for GoodtoKnow promoting "Cookie Monster's Foodie Truck."
Some of Riley's other television appearances include The IT Crowd (cameoing as herself), Strictly Come Dancing, Top Gear, Who Wants to Be a Millionaire?, and Richard Osman's House of Games.