NXT UK TakeOver: Cardiff was a 2019 professional wrestling livestreaming event produced by the American promotion WWE. It was the second NXT UK TakeOver event and took place on 31 August 2019 at the Motorpoint Arena Cardiff in Cardiff, Wales. The event aired exclusively on the WWE Network and was held for wrestlers from the promotion's NXT UK brand division.

Six matches were contested at the event. In the main event, Walter retained the WWE United Kingdom Championship against Tyler Bate. Other matches included Mark Andrews and Flash Morgan Webster defeating defending champions Zack Gibson and James Drake and Gallus (Mark Coffey and Wolfgang) in a triple threat tag team match to win the NXT UK Tag Team Championship, and Kay Lee Ray defeated Toni Storm to win the NXT UK Women's Championship.