UNECTO is the national tourist trains and train museums federation of France. Its members include private companies, associations and public authorities.
UNECTO is part of the European Federation of Museum and Tourist Trains (FEDECRAIL) and it is also a signatory for the tourist trains development charter together with SNCF, RFF, the Ministry of Transport, the Ministry of Tourism and the Ministry of Culture.
Most of the French tourist trains are members of UNECTO. See all of them here and some special ones below.