Epsilon Pi Tau (ΕΠΤ or EPT) is an international honor society for collegiate students and professionals in the field of technology.

Epsilon Pi Tau, National Honorary Fraternity in Practical Arts and Vocational Education was founded by professor William E. Warner at Ohio State University on March 13, 1929.

[5] Epsilon Pi Tau was incorporated on April 15, 1942, in the State of Ohio as a nonprofit honorary professional fraternity.

[11] Epsilon Pi Tau's emblem is an equilateral triangle key inscribed with TEXNIKH, PRAGMATEIA, and EXETASIS along each side.

[12] The key for laureate distinguished service members is like the emblem with the addition of a diamond or diamond-like stone mounted in the center.

[11][12] Members may wear a blue, white, and gold honor cord as part of their academic regalia to denote membership.

[7] Epsilon Pi Tau's Paul T. Hiser Exemplary Publication Award annually presents $500 to the best article in The Journal of Technology Studies.

[14] To be eligible for membership in Epsilon Pi Tau, undergraduate students must be enrolled in technology programs, have completed thirty semester hours with a 3.25 GPA in major courses, and rank in the top 35% of the class.

The latter two levels are attained through professional performance and accomplishment for faculty, academic support staff, and alumni of programs with Epsilon Pi Tau chapters.