Zeta Phi
The Zeta Phi fraternity, also know as the Rats, was founded in 1931. Otterbein has six local sororities, six local fraternities, two national fraternities, and two National Pan-Hellenic Council (NPHC) chapters. Only upperclassmen may reside in Greek housing, provided that all other eligibility requirements of Otterbein and the given organization are met.