Can I take my pet on the train?

Different train operators have different rules, as regards travelling with pets and for travelling with assistance animals. Here is some guidance from the different train companies:

Irish Rail: http://www.irishrail.ie/travel-information/travelling-with-animals

Virgin Trains: https://www.virgintrains.co.uk/experience/pets

Transport for Wales: https://tfwrail.wales/on-board/what-you-can-bring-on-board

National Rail:  https://www.nationalrail.co.uk/stations_destinations/luggage_animals.aspx