Congrats are in order for Conor McGregor and Dee Devlin — the UFC superstar popped the question to his longtime GF … and she said YES!!!

The couple — who have been together for more than a decade — made the news official on Saturday … showing off a MASSIVE engagement ring.

The fighter posted about dropping to one knee before Devlin’s 33rd birthday, which is August 9 … but hints it may have happened around his birthday last month.

“What a birthday, my future wife !” Conor captioned his post on Instagram.

McGregor and Devlin have 2 children together — 3-year-old Conor Jr. and almost 2-year-old Croia.

It’s been an eventful 2020 for Conor … he kicked it off by beating Cowboy Cerrone at UFC 246 … and retired from MMA (for the third time) in June.

Conor and Dee have spent their time traveling all over the globe ever since … including a lavish getaway in France.

Roll out the Proper No. 12 whiskey — it’s time to celebrate!!