| Billy Liar | |
| Cover: | Billy-liar.jpg |
| Type: | single |
| Artist: | The Decemberists |
| Album: | Her Majesty the Decemberists |
| Released: | September 14, 2004 |
| Length: | 14:51 |
| Label: | Kill Rock Stars |
| Next Title: | Sixteen Military Wives |
| Next Year: | 2005 |
"Billy Liar" is the debut single by the Decemberists. Deriving its title from the English novel Billy Liar, the song also references "Nogood Boyo" of Dylan Thomas' Under Milk Wood and appears to generally talk about a young man's boredom during long summer days. Musically, it has an upbeat, somewhat piano-driven, rather poppy sound.