Timothy Raymond Ambrose (born 1 December 1982) is a retired Australian-born English cricketer who played all three formats of the game internationally.

Ambrose formed half of Warwickshire's record fifth wicket partnership when he and Jim Troughton added 335 against Hampshire, at Birmingham, on 24 April 2009.

Ambrose began his career brightly, making a fifty on debut against New Zealand in the first Test and keeping cleanly throughout the match.

[5] Ambrose made his ODI debut on 15 June 2008 against New Zealand but struggled throughout the five-match series (which England lost 3–1), scoring just ten runs in five innings[6] and notably dropping a relatively simple catch at Lord's.

Poor scores led Ambrose to be dropped and replaced by Matt Prior for the One Day International series against South Africa.