"Smile Like You Mean It" is a song by American rock band the Killers, written by lead vocalist Brandon Flowers and bassist Mark Stoermer.

Originally released as a B-side on the "Mr. Brightside" EP on September 29, 2003, it is included on their debut studio album, Hot Fuss (2004).

"[6] Chuck Arnold with People magazine called the song "a sardonic moper worthy of the Smiths.

"[7] Billboard said the single is "more restrained and downtempo compared with the band's previous hits" but otherwise "pretty upbeat and is awash with soaring new wave synthesizers and 'killer' guitars.

David Gray performed an acoustic version of "Smile Like You Mean It" on BBC's Radio 1 in the Live Lounge.