Alpha Zeta is a professional fraternity of men and women whose educational objectives and/or careers fall within the broadly defined field of agriculture. Founded at The Ohio State University on November 4, 1897, it is the oldest fraternal organization in agriculture.

The purpose of The Fraternity of Alpha Zeta is to bind together a group of men and women interested in the continued advancement of agriculture and to foster and develop high standards of scholarship, character, leadership, and a spirit of fellowship among all its members.