The Alpha Delta chapter of Eta Sigma Phi, a national honorary fraternity of Greek and Latin students, was organized at Agnes Scott in 1928. The society encourages classical scholarship and appreciation of ancient learning, both in the Agnes Scott student body and in the local high school. Membership is based on scholarship. The Agnes Scott chapter of Phi Sigma Tau was organized in 1979. The society links philosophy departments in accredited institutions and students interested in philosophy.
Membership is open to qualified students who have taken at least three courses in philosophy.
A chapter was established at Agnes Scott College in 1990. The Kappa Kappa Chapter of Pi Delta Phi, the National French Honor Society, was established at Agnes Scott College in 1990. The purpose of this society is to recognize outstanding scholarship in the French language and literature. Membership is open to students who have taken at least five courses in French and have been nominated for academic achievement. The National German Honorary Society, Delta Phi Alpha, Kappa Kappa chapter, seeks to recognize excellence in the study of German and to provide an incentive for higher scholarship.