Oscar-winning actress Julia Roberts, already the mother of twins, gave birth on Monday to her third child.

Henry Daniel Moder weighed 8½ pounds, according to Roberts's publicist, Marcy Engelman.

Actress Julia Roberts, shown addressing the audience during the 21st annual American Cinematheque Award gala honouring George Clooney in Beverly Hills last October, has named her third child Henry.
(Chris Pizzello/Associated Press)

Roberts, 39, and her husband, cinematographer Danny Moder, 38, were married in 2002, a second marriage for Roberts.

They had twins, a girl Hazel and boy Phinnaeus, in November 2004.

Roberts, who catapulted to fame in 1990 in Pretty Woman, won a best actress Academy Award for Erin Brockovich.

She is reputed to be one of Hollywood's best-paid actresses, and her early relationship with the paparazzi was famously parodied in Notting Hill with Hugh Grant.

With files from the Associated Press