"My Baby Thinks He's a Train" is a song written by Leroy Preston, and recorded by American country music artist Rosanne Cash. It was released in August 1981 as the second single from the album Seven Year Ache. "My Baby Thinks He's a Train" was Rosanne Cash's second number one on the country chart. The single stayed at number one for a single week and spent a total of eleven weeks on the country chart.