Frank Sinatra Sings for Only the Lonely (also known as Sings for Only the Lonely and simply Only the Lonely) is an album by American singer Frank Sinatra, released in 1958.

Sinatra had planned to record this album with Gordon Jenkins, with whom he worked on Where Are You?, his previous all-ballads album. However, since he was unavailable at the time of the sessions, Sinatra chose to work with Nelson Riddle, his original arranger at Capitol Records.

According to the book Sinatra: An American Classic, when asked at a New York party in the mid-1970s if he had a favorite album among his recordings, Sinatra unhesitatingly chose this one.

One of several concept albums recorded by Sinatra in the 1950s, it is perhaps most notable as the most unambiguously bleak album of that decade. There are no up-tempo numbers – in fact the only emotional lift is for the benefit of purchasers of the CD reissue, who are treated to an out-take of the Rodgers and Hart classic Where Or When.

At the Grammy Awards of 1959 Frank Sinatra Sings for Only the Lonely was nominated for the Grammy Award for Album of the Year, and won the Grammy Award for Best Album Cover. The jacket comes adorned with a clown portrait of Sinatra's face; on the back of the album is another of Sinatra's recurrent visual motifs, a lamppost. Q placed it #1 on the '15 Greatest Stoner Albums of All Time' http://www.rocklistmusic.co.uk/q150lists.htm.

Only the Lonely peaked at #1 on Billboard's pop album chart during a 120 week chart-run.