Alec Baldwin and his yoga instructor fiancee have tied the knot in a New York City church.

Ms Thomas wore a silk magnolia Amsale gown with cap sleeves and a keyhole back neckline accented with crystal buttons, while Baldwin’s suit was designed by Tom Ford.

The two began dating last year and became engaged in April. Baldwin was previously married to actress Kim Basinger.

They have a daughter, Ireland, who attended the wedding in a slate silk chiffon gown also designed by Amsale.

Baldwin's 30 Rock co-star Tina Fey, as well as director Woody Allen and Baldwin’s actor-brother, Stephen, were in attendance.

The reception was being held at New York University’s Kimmel Centre.