"Killing Loneliness" is a song by Finnish rock band HIM.

It was released in February 2006, as a single from their 2005 breakthrough album, Dark Light.

"Killing Loneliness", along with "Wings of a Butterfly", is one of the band's best known songs in the United States.

On the 11 May 2006 episode of Loveline, lead vocalist Ville Valo confirmed that the song was inspired by skateboarder Brandon Novak, who blamed his heroin addiction on a need to, as he put it, "kill the loneliness".

Making a guest appearance in the U.S. version of the video is tattoo artist Kat Von D, known from the reality television series LA Ink and Miami Ink.