The acting couple had a beautiful baby boy and named him Otis Alexander Sudeikis.
Wilde, 30, confirmed the news via her Twitter account, posting an adorable black and white photo of herself with her new son and the caption:
“Ladies and gentlemen, Otis Alexander Sudeikis has LEFT the building! (I’m the building)”
Wilde has a previous marriage to Italian filmmaker Tao Ruspoli, but divorced in 2011. She began dating Sudeikis in Nov. 2011 and the two became engaged in Jan. 2013.
Sudeikis, 38, also has a previous marriage to 30 Rock writer Kay Cannon, but the two divorced in 2010.
This is the first child for both.