"It [was] very small and quiet," an insider said of last Friday's ceremony, which was attended only by family and friends, including Knight's former "Grey's Anatomy" co-star Katherine Heigl.
No other details about the wedding were immediately available, UsMagazine.com said.
Knight's new husband was identified only as his longtime companion Patrick. The report did not say how long the men had dated before exchanging vows.
Notable deaths of 2014 [PHOTOS]