Trains is a monthly magazine dedicated to trains and railroads, and is one of the two flagship publications of Kalmbach Publishing. The magazine is read both by railroad enthusiasts, commonly referred to as railfans, and those within the railroad industry.

The magazine was founded in 1940 by Al C. Kalmbach, and is based in Waukesha, Wisconsin. With an annual circulation of 184,220, it is the largest and oldest North American consumer magazine on rail transportation. Primarily, Trains covers the railroad happenings in the United States and Canada, and sometimes Mexico. However, there are articles on subjects on railroading around the world on occasion.

The editor as of October 2007 is Jim Wrinn, formerly of the Charlotte Observer. The magazine also includes a column from International Herald Tribune reporter Don Phillips, previously the transportation writer for the Washington Post. Well-known past editors included David P. Morgan and J. David Ingles, the former having served as editor-in-chief from 1953 to 1987, being succeeded by Ingles upon retirement.