| Dan Lauby | |
| Nickname: | "The Cujo" |
| Birth Place: | , U.S. |
| Hometown: | Terre Haute, Indiana, U.S. |
| Since: | 1980 |
| Darts: | 25 Gram |
| Laterality: | Right-handed |
| Pdc: | 1998– |
| World Masters: | Last 192: 2001 |
| Pdc World: | Last 32: 1999, 2000, 2001 |
| Matchplay: | Last 32: 1999 |
| Us Open: | Last 32: 2008 |
Daniel Lauby (sometimes referred to as Dan Lauby Snr; born March 6, 1960) is an American professional darts player who played in Professional Darts Corporation (PDC) events. His son Danny Lauby Jr. is also a professional darts player.
Lauby played in four PDC World Darts Championships between 1999 and 2004, although he never won a game.
Lauby He made his debut of the 1999 World Matchplay, losing to Jamie Harvey of Scotland 5–10 in the last 32.