What is PSI? | PSI Full Form | PSI Term

Dartmouth College is host to many fraternities and sororities, and a significant percentage of the undergraduate student body is active in Greek life. In the fall of 2022, 35 percent of male students belong to a fraternity and 36 percent of students belong to a sorority. Greek organizations at Dartmouth provide both social and residential opportunities for students and are the only single-sex residential option on campus. Greek organizations at Dartmouth do not provide dining options, as regular meal service has been banned in Greek houses since 1909.
Social fraternities at Dartmouth College grew out of a tradition of student literary societies that began in the late eighteenth and early nineteenth centuries. The first social fraternities were founded in 1842 and rapidly expanded to include the active participation of over half of the student body. Fraternities at Dartmouth built dedicated residence and meeting halls in the early 1900s and 1920s, and then struggled to survive the lean years of the 1930s. Dartmouth College was among the first higher education institutions to desegregate fraternity houses in the 1950s and was involved in the movement to create coeducational Greek houses in the 1970s. Sororities were introduced to campus in 1977.
As of 2024, Dartmouth College extends official recognition to fifteen all-male fraternities, ten all-female sororities, and three gender-inclusive Greek houses. The Greek houses are largely governed through three independent councils, the Interfraternity Council, the Inter-Sorority Council, and the Gender-Inclusive Greek Council. Dartmouth College has two cultural interest fraternities and two cultural interest sororities, which do not participate in the major governing councils but are member organizations of the National Pan-Hellenic Council. A chapter of the Phi Beta Kappa honor society is active, but there is no professional fraternities with active chapters at Dartmouth College.