Oscar De La Hoya Wants To Squash Beef W/ Dana White

Well, hell has officially frozen over and pigs are flying ... 'cause the long-standing feud between Oscar De La Hoya and Dana White could be coming to an end after the boxing legend told us he wanted to patch up his relationship with the UFC president.

TMZ Sports talked to De La Hoya and his girlfriend Holly Sonders outside the Christian Louboutin store in Beverly Hills ... when the conversation turned to Las Vegas, and eventually the UFC honcho.

"I wanna fix things up with Dana."

You probably know ... Dana and Oscar pretty much hate each other's guts. They've both gone back and forth, verbally eviscerating each other in the process.

"I criticized the UFC a bit and I was wrong for it but yeah, I would love to patch things up with Dana and Mayweather."

It's gotten personal -- very personal -- between the men over the years (search YouTube) ... but it's clear Oscar had a change of heart and wants to squash the beef.

ODLH says he's building a house with Holly in Sin City (which happens to be Dana's backyard, where he lives and runs the UFC ... and actually wants to work with White as business partners.

"I have some big plans for Vegas."

As for Floyd Mayweather ... TBE and Floyd previously fought each other in 2007, where Mayweather won by split decision. Mayweather Promotions and Golden Boy, Oscar's promotion, also worked together for years.

Question is ... after all the barb's back-and-forth, will Dana and/or Floyd be open to the peace talks??