IC 20-18-2-13: "Parent"

Sec. 13. "Parent" means:

(1) the natural father or mother of a child;

(2) in the case of adoption, the adopting father or mother of a child;

(3) if custody of the child has been awarded in a court proceeding to someone other than the mother or father, the court appointed guardian or custodian of the child; or

(4) if the parents of a child are divorced, the parent to whom the divorce decree or modification awards custody or control with respect to a right or obligation under this title.