Yes, the vast majority of Transport for Wales (TfW) trains are equipped with onboard toilet facilities, though the type and quality depend on the age of the rolling stock. In 2026, TfW has almost entirely replaced its older "Pacer" and "Sprinter" trains with a brand-new fleet of Class 197 Civity and Class 231/756 FLIRT trains. These modern units feature spacious, accessible "universal toilets" with baby-changing facilities and electronic door locks. On longer regional routes, such as the North Wales to Cardiff line or the services to Manchester, you can consistently expect at least one or two functional toilets per train set. It is important to note that very short "shuttle" services or the smallest "Metro" units in the South Wales Valleys might occasionally have limited facilities, but for the vast majority of the network, passengers have reliable access to restrooms. TfW's 2026 "Customer Promise" includes regular cleaning of these facilities, making them significantly more pleasant than the older, cramped versions of the previous decade.