Delta Epsilon Sigma (ΔΕΣ) is an American scholastic honor society that was established for students of Catholic universities and colleges.

[2] The committee selected the name Delta Epsilon Sigma and created a motto, insignia, and constitution.

[2] This work was shared with all Catholic colleges and universities before a Constitutional Convention in Kansas City on March 29, 1940.

[1] Delta Epsilon Sigma was established as a national scholastic honor society for male and female students at Catholic universities and colleges.

Undergraduate students must be ranked in the top twenty percent of their class and have completed at least half of the credit requirements for their baccalaureate degree.

[7][2] The chapters of Delta Epsilon Sigma are named for letters of the Greek alphabet, in charter date order.