Hugh Grant announced the arrival of his second child with girlfriend Tinglan Hong on Twitter, E! Online said.
"And to be crystal clear. I am the Daddy."
E! Online said Hong and Grant had their first child, Tabitha, in September of 2011.
In an interview with Ellen DeGeneres last year, Grant said he enjoys parenthood.
"Now that I have a child, it is life changing. I recommend it. Get some!"