Pendolino (from Italian pendolo [ˈpɛndolo] "pendulum", and -ino, a diminutive suffix) is an Italian family of tilting trains used in Italy, Spain, Portugal, Slovenia, Finland, Russian Federation, the Czech Republic, the United Kingdom, Slovakia, Switzerland, China and shortly in Romania and Poland. Based on the design of the Italian ETR 401 and the British Advanced Passenger Train, it was further developed and manufactured by Fiat Ferroviaria, which was taken over by Alstom in 2000.

The idea of a tilting train became popular in the 1960s and 1970s when various rail operators, impressed by the high-speed rail services being introduced in France and Japan, wondered how they could similarly speed up travel without building a dedicated parallel rail network (as those two countries were doing). By tilting, the train could go around curves designed for slower trains at higher speeds without causing undue discomfort to passengers.

In Italy, various possibilities were explored (including one early design for fixed carriages with tilting seats). A number of prototypes were built and tested, including an automotrice (self-propelled) derived from ALn 668 diesel car and provided with tilting seats. The first working prototype using a tilting carbody was ETR Y 0160, an electrically powered car launched by FIAT in 1969. This was the first to be christened Pendolino.