The actress is set to wed her new love, jeweller Albert DePrisco, after he proposed on Christmas Eve (24Dec13).
The pair began dating after being introduced by mutual friends in early 2012. They moved in together in Florida earlier this year (13).
The happy news comes over four years after the Dirty Dancing star lost his cancer battle in 2009. Swayze and Niemi were married for 34 years.
During an interview in 2010, Niemi told People.com that she was open to walking down the aisle again, saying, "I would love companionship love. Absolutely. I hope I'm not one of these women who never want to have another relationship. But who knows, that's another bridge I'll cross when I come to it. I may get there and go, I don't know. But I like to think that I can."