Sigma Delta Pi (ΣΔΠ) is the national collegiate Hispanic honor society (La Sociedad Nacional Honoraria Hispánica).

Sigma Delta Pi (ΣΔΠ), the National Collegiate Hispanic Honor Society (La Sociedad Nacional Honoraria Hispánica), was established on November 14, 1919 at the University of California, Berkeley.

[1] The society recognizes seven founding members but acknowledges an undergraduate UC Berkeley student named Ruth Barnes as its organizer and first president.

Sigma Delta Pi's insignia is the royal seal of Ferdinand and Isabella that represents Castille, León and Aragón.

Student members are invited to join based on superior academic achievement in strict accordance with the criteria set forth by the Association of College Honor Societies.