Representatives for the 47-year-old country singer say her boyfriend, Cactus Moser, popped the question on Christmas Eve.
They have been dating since 2009.
Moser, 54, is a drummer with the country group Highway 101.
The couple are currently on tour as Wynonna and The Big Noise.
This will be Judd's third marriage. She has two teenage children with her first husband.
News of the engagement was first reported Thursday by the website People.com.