| Ultimate Fight Night 4 | |
| Promotion: | Ultimate Fighting Championship |
| Date: | April 6, 2006 |
| Venue: | Hard Rock Hotel and Casino |
| City: | Las Vegas, Nevada |
| Attendance: | 843 |
| Gate: | $199,150[1] |
| Previousevent: | UFC 58: USA vs Canada |
| Followingevent: | UFC 59: Reality Check |
Ultimate Fight Night 4 was a mixed martial arts event held by the Ultimate Fighting Championship on April 6, 2006. The event took place at Hard Rock Hotel and Casino, in Las Vegas, Nevada and was broadcast live on Spike TV in the United States and Canada. The show drew a 1.6 overall rating and served as the lead-in for the season three premiere episode of The Ultimate Fighter.
Stephan Bonnar: $24,000
Luke Cummo: $24,000
Rashad Evans: $24,000
Josh Koscheck: $14,000
Chris Leben: $14,000
Joe Stevenson: $12,000
Josh Neer: $8,000
Jon Fitch: $8,000
Sam Hoger: $7,000
Dan Christison: $6,000
Brad Imes: $6,000
Chael Sonnen: $6,000
Trevor Prangley: $6,000
Jason Von Flue: $5,000
Luigi Fioravanti: $5,000
Keith Jardine: $5,000
Josh Burkman: $5,000
Ansar Chalangov: $2,000
Disclosed Fighter Payroll: $181,000