| Number One | |
| Cover: | Number One John Legend.jpg |
| Type: | single |
| Artist: | John Legend featuring Kanye West |
| Album: | Get Lifted |
| Released: | September 23, 2005 |
| Recorded: | 2004 |
| Length: | 3:18 |
| Chronology: | John Legend |
| Prev Title: | Ordinary People |
| Prev Year: | 2005 |
| Next Title: | So High |
| Next Year: | 2005 |
"Number One" is the third single released from R&B singer John Legend's album Get Lifted. It features Kanye West and contains a sample of the song "Let's Do It Again" by The Staple Singers. It is a hip hop and R&B song.