13 Famous Dads Who Will Celebrate Their First Father's Day

Ashton and Mila Kunis became first-time parents in October 2014 with the birth of their daughter, Wyatt.

Justin became a dad for the first time in April 2015 when his wife, Jessica Biel, gave birth to a son, Silas.

Ryan and his wife, Blake Lively, became first-time parents when their daughter, James, was born in December 2014.

Hayden and his longtime love, Rachel Bilson, welcomed a baby girl in November 2014. They named their daughter Briar Rose, a nod to the 1959 Disney animated film Sleeping Beauty.

The Aussie actor welcomed a son, Rocket, with model Lara Bingle in March 2015.

Ryan and his girlfriend, Eva Mendes, welcomed baby Esmeralda in September 2014.

The hockey player became a dad for the first time when he and his wife, Carrie Underwood, welcomed son Isaiah in March 2015.

The British musician and his wife, actress Keira Knightley, welcomed their first child in May 2015.

Interior designers Nate and Jeremiah became fathers when their daughter, Poppy, was born in March 2015.

The boxer and his fiancée, Hayden Panettiere, welcomed their baby girl, Kaya, in December 2014.

Armie and his wife, Elizabeth Chambers, welcomed a baby girl, Harper, in December 2014.

The former Boy Meets World star welcomed a son, named Indigo "Indy" Barreto Strong, with his wife, Alexandra Barreto, in December 2014.