"I'm Your Captain (Closer to Home)" is a 1970 song written by American musician Mark Farner and recorded by Grand Funk Railroad as the closing track to their album Closer to Home. Ten minutes in duration, it is the band's longest studio recording. One of the group's best-known songs, it is composed as two distinct but closely related movements. Its title has been rendered in various ways across many different Grand Funk albums, including "I'm Your Captain", "I'm Your Captain/Closer to Home", "Closer to Home/I'm Your Captain", "Closer to Home (I'm Your Captain)", and "Closer to Home".