Pi Kappa Delta is the oldest national collegiate forensic honorary consisting of educators, students and alumni committed to encouraging the education of articulate citizens through a three-part focus:
- the commitment to and promotion of ethical, humane and inclusive communication and educational practices;
- the commitment to and promotion of professional development of forensics educators; and
- the commitment to and promotion of comprehensive forensics programming.
Marietta's chapter, Ohio Zeta, was established in 1926.
Students who have participated in intercollegiate debate and individual speech events are eligible for membership.