Marisa Miller and husband-music producer Griffin Guess have welcomed their first child together.

The couple named their baby son, who was born in Santa Cruz, California on Thursday (December 13), Gavin Lee Guess.

Speaking to People, Miller said: "I'm completely overjoyed by the birth of our son. I feel so blessed to be a mum and am so excited to experience this next part of life."

Miller can be seen in R.I.P.D the Ryan Reynolds action film out in 2013.