Unexpected Guest may refer to:

• An Unexpected Guest, a 1909 silent film
• Unexpected Guest (film), a 1947 Hopalong Cassidy Western
• Unexpected Guest (1997 film), a 1997 film short
• Unexpected Guest (2010 film), a 2010 comedy film short

• The Unexpected Guest (play), a 1958 Agatha Christie play
• The Unexpected Guest (novel), a 1999 Charles Osborne novelization of a 1958 Agatha Christie play

• Unexpected Guests, a 2009 Hip Hop album by MF DOOM
• The Unexpected Guest, a 1982 album by Demon

• Unexpected Guest at a Cancelled Party, a 2007 New Wave album by the band Spoons