| WEC 14: Vengeance | |
| Promotion: | World Extreme Cagefighting |
| Date: | March 17, 2005 |
| Venue: | Tachi Palace Hotel & Casino |
| Previousevent: | WEC 13: Heavyweight Explosion |
| Followingevent: | WEC 15: Judgment Day |
WEC 14: Vengeance was a mixed martial arts event promoted by World Extreme Cagefighting on March 17, 2005, at the Tachi Palace Hotel & Casino in Lemoore, California.[1] The Main Event saw John Polakowski take on Olaf Alfonso.