Credit: Dominique Charriau/WireImage

Forget any weddings or a funeral -- Hugh Grant has a baby to tend to!

The British actor, 51, became a dad for the first time, welcoming a baby girl in early October, a source close to Grant revealed to Us Weekly.

"I can confirm that Hugh Grant is the delighted father of a baby girl," his rep tells Us.  "He and the mother had a fleeting affair and while this was not planned, Hugh could not be happier or more supportive.  He and the mother have discussed everything and are on very friendly terms."

The identity of the baby's mom has not yet been revealed; back in April, Grant was romantically linked to stunning Chinese actress Tinglan Hong.

"He's going to be a great dad!" the source tells Us. "He's beaming about his daughter. He's not with the mum anymore but he's absolutely thrilled."

In 2007, Grant told Vogue he was ready to be a father. "As much as I adore myself, I'm quite keen to find someone else to care about more," he said. "I remember reading a Warren Beatty quote when he finally had children and said what a relief it was to not be all me, me, me."

Although the About a Boy actor has never been married, he famously dated fellow Brit Elizabeth Hurley for 13 years before parting amicably in 2000.

He and British writer and socialite Jemima Kahn dated from 2004 to 2007.