"I Believe in a Thing Called Love" is a song by English rock band the Darkness, released as the third single from their debut studio album, Permission to Land.

"I Believe in a Thing Called Love" was originally issued as a 3-track EP in August 2002; however, as only a small number of copies were printed, it was ineligible to chart.

[2] Sales and streams in the UK have surpassed 600,000 units, allowing it to receive a platinum certification from the British Phonographic Industry (BPI).

[7][8] In March 2005, Q magazine placed "I Believe in a Thing Called Love" at number 47 in its list of the 101 Greatest Guitar Tracks.

This song was featured as a playable track on the music video games Karaoke Revolution Volume 2, Guitar Hero On Tour: Decades and Dancing Stage Fusion; as source music in an episode of The Bill; and as part of the soundtracks for the films Bridget Jones: The Edge of Reason, Mike and Dave Need Wedding Dates, and The Fall Guy.