The biggest fight in women's MMA could actually happen -- because Dana White tells TMZ Sports ... Ronda Rousey "absolutely, positively" wants to fight Cris "Cyborg" Justino.
With Cyborg coming off ANOTHER dominating performance this weekend, we had to ask White if UFC's fastest rising superstar will finally get her wish ... a shot at Rousey.
Check out the clip ... White -- who was outside Stand Up NY -- says he's still gunning to get Ronda back in the Octagon this year -- and then focus on setting up the superfight with Cyborg.
The good news for Rousey fans -- "She's getting nasty again and her head's in the right place."
BONUS -- White is also a HUUUUUGE New England Patriots fan ... and gave his team all sorts of dap for crushing people without the use of Tom Brady.