UFC Fight Night 91: McDonald vs. Lineker
- Cast: John Lineker, Michael McDonald, Tony Ferguson, Landon Vannata, Tim Boetsch
- Duration: N/A minutes
- Genre: Action
- Rating: N/A/10
- Release Date: 2016-07-13
UFC Fight Night 91: McDonald vs. Lineker was a mixed martial arts event held on July 13, 2016 at Denny Sanford Premier Center in Sioux Falls, South Dakota.
