| Car Horn | |
| Cover: | Car Horn.jpg |
| Type: | single |
| Artist: | Common featuring Mark the 45 King |
| Released: | May 10, 1999 |
| Genre: | Underground hip hop |
| Length: | 3:18 |
| Label: | Groove Attack Productions |
| Producer: | Mark the 45 King |
| Chronology: | Common |
| Prev Title: | One-Nine-Nine-Nine |
| Prev Year: | 1999 |
| Next Title: | Hurricane |
| Next Year: | 1999 |
"Car Horn" is a non-album single by rapper Common and producer Mark the 45 King. Released in 1999 by Groove Attack Productions, the song features free-associative battle raps. It was remixed by Madlib for Common's white label release Common Remixes.