Brian Solomon weighed 7 lbs. 9 oz. and measured 21 inches at birth, the Associated Press reports.
"It is the most rewarding thing in my life, so I could not be happier to be adding to the family," said Kerrigan, 35. "It has not been an easy road but the hard things are often the best things. We are looking forward to a lot of excitement."
Kerrigan and agent-producer Solomon live in Lynnfield, Mass. Brian has a brother Matthew, 8, and a half-brother Clay, 16.
In 1994 she also made headlines as the target of rival Tonya Harding, whose husband and his associates were later convicted of injuring Kerrigan by clubbing her knee.
Harding, who currently has a career as a female boxer, also made news this month. There were reports that her scheduled bout with transvestite Daisy D in a Ft. Lauderdale bar was canceled by the Florida Boxing Commission because Daisy D is not a registered fighter.