All parents/guardians of students, faculty, and staff are members of the Parent/Faculty/Staff Association known as PFSA. The purposes of PFSA are:
- to facilitate communication between parents/guardians of students, faculty, staff, and Board of Trustees of the school;
- to provide supplemental funds for the school through various fundraising events;
- to facilitate the establishment and maintenance of an effective learning environment for Overlake students, and
- to support the school and its programs.