Older brother of Luke Wilson and Owen Wilson.
Divorced and lives in California.
In The Royal Tenenbaums (2001), the hand that is seen with the BB lodged between its knuckles is not Ben Stiller's, but Andrew Wilson's.
When they were children, Andrew and brother Owen Wilson were horsing around with a BB gun. Owen accidentally fired the gun at Andrew's hand, and the pellet has been there ever since.
Has a son, Joseph 'Joey' Obiamiwe Wilson (born 2003).
Attended the all-boys St. Mark's School of Dallas, Texas with his brothers, Luke Wilson and Owen Wilson, Tommy Lee Jones and Stephen Dignan.
He is of Irish descent.