The incident happened just before 11 p.m. Friday in the 3400 block of West Olinda Avenue.
Police said at least two men wearing dark hooded sweatshirts walked up to a courtyard and shot the teenagers.
Two were taken to an area hospital. A third wounded teenager came forward about a half hour later.
Officials said all of the victims suffered non life-threatening injuries.
A motive for the shooting was not known.
If you have any information regarding this investigation, you're urged to contact the Anaheim Police Department at (714) 765-1900.
