John Stamos and Caitlin McHugh welcome a baby boy. Find out the reason behind their new addition's name. - BabyNames.com Celebrity Baby Blog
@johnstamos Instagram

Congratulations to John Stamos and his wife, Caitlin McHugh — the couple welcomed their first child together, a baby boy, on Sunday evening!

John made the announcement on Instagram, sharing the sweetest photo of their new addition, as well as explaining his name, Billy.

John wrote: “From now on, the best part of me will always be my wife and my son. Welcome Billy Stamos (named after my father)  #NotJustanUncleAnymore #Overjoyed.”

Billy is of English origin, a shortened form of William, which means “strong-willed warrior.”

In December, John posted a throwback photo of his dad, writing at the time: “I will certainly fall short of the father my pop was, but — I’m going to give it my all! #Balance #BillStamos#Hero.”

John and Caitlin were married in February after two and a half years together.

Kate Fann (she/her) is the BabyNames.com celebrity blogger, as well as an established content writer, aspiring author, and social media expert. She has been featured in online publications such as Bolde, ManoByte, Medium, The Social Observer, and more. Kate has ghostwritten numerous romance novels and is currently working on publishing her own works in the Young Adult genre.

Kate lives in East Tennessee with her husband Casey and her two sons, Quinn and Noah. When she's not writing or scrolling Instagram, Kate can be found tasting delicious wines, playing with make-up, baking yummy treats, or hiking the beautiful Smoky Mountains.