The Rock Island Line is a common name for the Chicago, Rock Island and Pacific Railroad.
Rock Island Line may also refer to:
Rock Island Line (album), a Johnny Cash album "Rock Island Line" (song), a traditional song Rock Island District, a Metra commuter rail line
See also Rock Island Clean Line, an electrical distribution trunk line in the U.S. Midwest Rock Island Southern Railway, Illinois, USA Peoria and Rock Island Railroad, Illinois, USA Rock Island (disambiguation) Island Line (disambiguation)