UFC Fight Night 6
|UFC Fight Night: Sanchez vs. Parisyan|
|Promotion||Ultimate Fighting Championship|
|Date||August 17, 2006|
|Venue||Red Rock Resort Spa and Casino|
|City||Las Vegas, Nevada|
UFC Fight Night: Sanchez vs. Parisyan (also known as UFC Fight Night 6) was a mixed martial arts event held by the Ultimate Fighting Championship on August 17, 2006. The event took place at the Red Rock Resort Spa and Casino in Las Vegas, Nevada, and was broadcast live on Spike TV in the United States and Canada. It acted as a lead-in to the season four premiere of The Ultimate Fighter. The two-hour broadcast of UFC Fight Night 6 on Spike TV drew a 1.5 overall rating.
The main event of the evening – a welterweight bout between The Ultimate Fighter superstar Diego Sanchez and former title contender Karo Parisyan – was given heightened interest, as the winner of the bout was rumored to designate the next challenger for the UFC welterweight championship. 
The disclosed fighter payroll for this event was $173,500. 
|Welterweight||Diego Sanchez||def.||Karo Parisyan||Decision (unanimous) (29–28, 29–28, 30–26)||3||5:00||[a]|
|Middleweight||Chris Leben||def.||Jorge Santiago||KO (punch)||2||0:35|
|Middleweight||Dean Lister||def.||Yuki Sasaki||Decision (unanimous) (30–27, 30–27, 30–27)||3||5:00|
|Welterweight||Josh Koscheck||def.||Jonathan Goulet||Submission (punches)||1||4:10|
|Middleweight||Martin Kampmann||def.||Crafton Wallace||Submission (rear-naked choke)||1||2:59|
|Welterweight||Joe Riggs||def.||Jason Von Flue||Submission (triangle choke)||1||2:01||[b]|
|Heavyweight||Jake O'Brien||def.||Kristof Midoux||TKO (punches)||2||0:52|
|Welterweight||Forrest Petz||def.||Sam Morgan||Decision (unanimous) (30–27, 30–26, 30–23)||3||5:00||[c]|
|Welterweight||Anthony Torres||def.||Pat Healy||Submission (rear-naked choke)||1||2:37|
- The fight was later named UFC Fight of the Year for 2006.
- This bout was aired on the broadcast.
- The second score marks the widest point margin in a three-round fight in UFC history.
- Fight of the Night: Diego Sanchez vs. Karo Parisyan
- Knockout of the Night: Chris Leben
- Submission of the Night: Joe Riggs