Coach Trip is a British reality game show that was first aired on Channel 4 on 7 March 2005. The show's premise sees four to seven pairs of tourists undertaking a coach tour principally of continental Europe between twenty and fifty days, whilst accompanied in every episode by tour guide Brendan Sheerin. A vote takes place every evening in which each couple votes for the pair they least enjoy travelling with, and the pair with the most votes receives either a yellow or red card.

The show went on hiatus on 30 June 2006, and returned after a three-year break, from 25 May 2009 to 9 March 2012. In early 2013, the show went on hiatus again and was replaced by two new shows, Brendan's Magical Mystery Tour and Brendan's Love Cruise. However, in September 2013, Channel 4 announced that they had renewed Coach Trip for another series in 2014. On 9 April 2014, a further four series were announced following the success of the ninth series in early 2014.

The fourteenth series was the first of the relaunched Coach Trip: Road to... series, and aired on E4 from 25 July 2016 to 2 September 2016 entitled Coach Trip: Road to Ibiza, the fifteenth series aired from 16 January 2017 to 24 February 2017 with the title Coach Trip: Road to Marbs. The sixteenth series aired from 24 July 2017 to 15 September 2017 with the title Coach Trip: Road to Zante. The series was renewed for its seventeenth series in July 2017. This was titled Coach Trip: Road to Tenerife and aired from 8 January 2018 to 2 March 2018. The eighteenth and most recent series began airing on 28 January 2019 with the title Coach Trip: Road to Barcelona, reverting to 30 episodes, it ended on 8 March 2019. In February 2023, Channel 4 said the future of Coach Trip was uncertain.

The show's spin-off Celebrity Coach Trip launched in November 2010, and featured celebrity pairs embarking on the trip. The celebrity series' have been marginally shorter and have run between ten and fifteen days. Seven editions of Celebrity Coach Trip have aired in total, with the latest series concluding on 21 January 2022. Christmas and Halloween versions of the series' have also aired, with Christmas Coach Trip and Celebrity Ghost Trip in 2011 and 2021 respectively.

Coach Trip originally aired weekdays at 4:30 pm before Deal or No Deal debuted on Channel 4 (followed by a repeat the following morning), with the second series aired at 2:55 pm instead (and then repeated between July and August 2007). Since the revived series, Coach Trip has moved to the 5:00 pm slot (in series 3, 4, 7, 9, Celebrity Coach Trip 2 & 3 and Christmas Coach Trip) and later to the 5:30 pm slot (in series 5, 6, 8, 9, 10, 11, 12, 13 and Celebrity Coach Trip 1) on Channel 4. Since the 14th series (Coach Trip: Road to Ibiza) in 2016, the show has aired on weekdays at 7:30 pm on E4.

In series 3, an omnibus edition was also shown on weekends but was cancelled part of the way through the series. It returned for series 9 on More4.

Andy Love was the narrator in the first two series, with David Quantick taking the role in both series 3 and 4. From series 5 to 8, Dave Vitty was the show's narrator; he was also the narrator for all the Celebrity and Christmas series' of Coach Trip to date. Jackie Clune was the narrator from series 9 to 13, with Clara Amfo taking over for the fourteenth series.

4seven aired repeats of series 8 onwards, More4 repeated all series, and defunct Sky Travel, Sky Mix (then known as Sky Three/Sky3/Pick TV/Pick) and defunct Sky Real Lives have all only repeated series 1 & 2 of Coach Trip along with defunct Channel 4 scheduling slot, T4 on weekend mornings. Celebrity Coach Trip began showing repeats on Travel Channel in May 2014.