Jim Parsons has tied the knot with Todd Spiewak his partner of 14 years.

The couple exchanged vows in New York City's famed Rainbow Room on Saturday (14 May) evening.

Parsons came out as gay to New York magazine in 2012 when he first revealed he was dating Todd.

Last year the star The Big Bang Theory star said he was thrilled to celebrate his 14 year anniversary with Spiewak.

"I met this guy... 14 years ago today and it was the best thing that ever happened to me, no contest. One of his greatest gifts to me is that he no longer takes me to sing karaoke. Also, I believe this was a selfie with an actual camera, as our phones couldn't do that back then hahaha!"

In 2015, Parsons revealed to James Lipton on Inside The Actors Studio how relieved he was after coming out as gay.

"I never had a coming out piece, I just didn't mention it," Parsons said.

"I took Todd with me to events...and then finally one day while working on Harvey I did a piece with Patrick Healy for The New York Times and he just point-blank asked, 'Was working on The Normal Heart meaningful to you as a gay man?' And I was like, 'Well, yeah. Yeah.' And what a wonderful...I can't tell you what a wonderful thing that was, what a gift he gave me with one question. It was suddenly out there and official."

The wedding announcement comes as The Big Bang Theory aired its season 10 finale.