North American fraternity and sorority housing refers largely to the houses or housing areas in which fraternity and sorority members live and work together. In addition to serving as housing, fraternity and sorority housing may also serve to host social gatherings, meetings, and functions that benefit the community.
Sigma Chi (ΣΧ) International Fraternity is one of the largest of North American social fraternities. The fraternity has 244 active undergraduate chapters and 152 alumni chapters across the United States and Canada and has initiated over 350,000 members. The fraternity was founded on June 28, 1855, at Miami University in Oxford, Ohio, by members who split from the Delta Kappa Epsilon fraternity.
Lambda Chi Alpha (ΛΧΑ), commonly known as Lambda, is a collegiate fraternity in North America. As of 2024, it was one of the largest social fraternities, with over 300,000 initiates, almost 8,700 undergraduate members, and chapters and associate chapters at 185 institutions in the U.S. and Canada. Its members may be known variously as Lambda Chis, LXAs, LCAs, Lambdas, Chops, or Choppers at different campuses.
The North American Interfraternity Conference is an association of intercollegiate men's social fraternities that was formally organized in 1910, although it began at a meeting at the University Club of New York on November 27, 1909. The power of the organization rests in a House of Delegates in which each member fraternity is represented by a single delegate. However, the group's executive and administrative powers are vested in an elected board of directors consisting of nine volunteers from various NIC fraternities. Headquartered in Indianapolis, Indiana, the NIC has a small professional staff.
Dartmouth College is host to many fraternities and sororities, and a significant percentage of the undergraduate student body is active in Greek life. In 2005, the school stated that 1,785 students were members of a fraternity, sorority, or gender-inclusive Greek house, comprising about 43 percent of all students, or about 60 percent of the eligible student body. 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.
Phi Delta Theta (ΦΔΘ), commonly known as Phi Delt, is an international secret and social fraternity founded in 1848, and currently headquartered, at Miami University in Oxford, Ohio. Phi Delta Theta, along with Beta Theta Pi and Sigma Chi form the Miami Triad. The fraternity has over 200 active chapters and colonies in over 44 U.S. states and five Canadian provinces and has initiated more than 310,000 men between 1848 and 2024. There are over 180,000 living alumni. Phi Delta Theta chartered house corporations own more than 135 houses valued at over $141 million as of summer 2015. There are nearly 100 recognized alumni clubs across the U.S. and Canada.
Thomas Cowan Bell was an American college president, educator, newspaper publisher, and Civil War veteran. He is best known for being one of the founders of Sigma Chi fraternity.
Delta Phi (ΔΦ) is a fraternal society established in Schenectady, New York on November 17, 1827. Its first chapter was founded at Union College, and was the third and final member of the Union Triad. In 1879, William Raimond Baird's American College Fraternities characterized the fraternity's membership as being largely drawn from the old knickerbocker families of New York and New Jersey. Today, the fraternity consists of ten active chapters along the East Coast of the United States, and also uses the names "St. Elmo," "St. Elmo Hall," or merely "Elmo" for its relation to Erasmus of Formia, the patron saint of sailors, and the Knights of Malta.
Beta Upsilon Chi is an American Christian social fraternity. It was founded at the University of Texas at Austin in 1985 and has chartered 29 chapters.
Kappa Delta was the first sorority founded at the State Female Normal School, in Farmville, Virginia.
While the traditional social fraternity is a well-established mainstay across the United States at institutions of higher learning, alternatives – in the form of social fraternities that require doctrinal and behavioral conformity to the Christian faith – developed in the early 20th century. They continue to grow in size and popularity.
Alpha Epsilon Pi (ΑΕΠ), commonly known as AEPi, is a college fraternity founded at New York University in 1913. The fraternity has more than 150 active chapters across the United States, Canada, United Kingdom, and Israel, and has initiated more than 110,000 members. Although the fraternity is based upon Jewish principles, it is non-discriminatory and is open to all who are willing to espouse its purpose and values regardless of their particular faith tradition.
Lambda Kappa Sigma is an international pharmacy fraternity headquartered in Muskego, Wisconsin. Founded in 1913, it t was created to promote the profession of pharmacy among women and advance women within the profession. LKS is the oldest and largest professional pharmacy fraternity for women in the world. Lambda Kappa Sigma has initiated more than 30,000 members and has 45 chartered chapters. It also has 36 chartered alumni groups internationally.
Kappa Sigma (ΚΣ), commonly known as Kappa Sig or KSig, is an American collegiate social fraternity founded at the University of Virginia in 1869. Kappa Sigma is one of the five largest international fraternities with currently 318 active chapters and colonies in North America. Its endowment fund, founded in 1919, has donated more than $5 million to undergrads since 1948. In 2012 alone, the Fraternity's endowment fund raised over $1 million in donations.
The expansion of Greek letter organizations into Canada was an important stage of the North American fraternity movement, beginning in 1879 with the establishment of a chapter of Zeta Psi at the University of Toronto. In 1883, the same fraternity established a chapter at McGill University. Other early foundations were Kappa Alpha Society at Toronto in 1892 and at McGill in 1899, and Alpha Delta Phi at Toronto in 1893 and at McGill in 1897. The first sorority, Kappa Alpha Theta, was established in Toronto in 1887. In 1902, the first international chapter of Phi Delta Theta was established at McGill University as the Quebec Alpha.
Delta Kappa Fraternity (ΔΚ) was an American national fraternity that existed from 1920 to 1964.
