BlairGivesBirth230.jpgSelma Blair has given birth to a boy! Finally!

The actress, 39, and her fashion designer boyfriend, Jason Bleick, welcomed a son on Monday, according to People.

The little tyke's name is quite royal .. and holy ... Arthur Saint Bleick.

Little Arthur weighed 7 lbs., 12 oz.

Blair announced her pregnancy in January. She was significantly past her due date, but wanted to do a natural birth at home.

She was active through the end of her pregnancy, walking her dogs and running errands.

This is the first child for Blair.