The European Rail Timetable, more commonly known by its former names, the Thomas Cook European Timetable, the Thomas Cook Continental Timetable or simply Cook's Timetable, is an international timetable of selected passenger rail schedules for every country in Europe, along with a small amount of such content from areas outside Europe. It also includes regularly scheduled passenger shipping services and a few coach services on routes where rail services are not operated. Except during World War II and a six-month period in 2013–14, it has been in continuous publication since 1873. Until 2013 it was published by Thomas Cook Publishing, in the United Kingdom, and since 1883 has been issued monthly. The longstanding inclusion of "Continental" in the title reflected the fact that coverage was, for many years, mostly limited to continental Europe. Information on rail services in Great Britain was limited to only about 30 pages until 1954 and then omitted entirely until 1970. June 2011 marked the 1500th edition.

Thomas Cook Group plc was a global travel group, headquartered in the United Kingdom and listed on the London Stock Exchange from its formation on 19 June 2007 by the merger of Thomas Cook AG — successor to Thomas Cook & Son — and MyTravel Group until 23 September 2019, when it went into compulsory liquidation. The group operated as a tour operator and airline, and also operated travel agencies in Europe. At the time of the group's collapse, approximately 21,000 worldwide employees were left without jobs and 600,000 customers were left abroad, triggering the UK's largest peacetime repatriation.