Ariel Helwani first reported the news, and it was later confirmed on Wednesday's episode of UFC Tonight.
Nunes (12-4), meanwhile, has won three straight since losing to Cat Zingano at UFC 178 in September 2014. Most recently, "The Lioness" defeated Valentina Shevchenko via unanimous decision at UFC 196. Of Nunes' 12 career victories, nine have come via TKO.
Tate vs. Nunes joins a UFC 200 card headlined by a rematch between Nate Diaz and Conor McGregor. Also confirmed for the card are: Jim Miller vs. Takanori Gomi, Sage Northcutt vs. Enrique Marin, Diego Sanchez vs. Joe Lauzon, Gegard Mousasi vs. Derek Brunson, Johny Hendricks vs. Kelvin Gastelum, Cain Velasquez vs. Travis Browne, and Jose Aldo vs. Frankie Edgar for the interim featherweight title.