List of Massachusetts Institute of Technology fraternities and sororities


The first fraternity at Massachusetts Institute of Technology was Chi Phi, established in 1873. In the fall of 2023, 43 percent of MIT's male students belonged to a fraternity, while 23 percent of female students belonged to a sorority. As of 2025, MIT has 23 social fraternities, five gender-inclusive social fraternities, ten social sororities and women's fraternities. It also has nine honor societies and recognition organizations, and one service fraternity, and two professional fraternities. Five Independent Living Groups are grouped into a separate Living Group Council, but otherwise operate similarly to residential fraternities and sororities. These are known collectively as FSILGs.
Within this article, the terms "fraternity" and "sorority" are used somewhat interchangeably, with men's and co-ed groups normally using fraternity, and women's groups using either fraternity or sorority. Greek Letter Society is a generic substitute, with the word "Greek" referring to the use of Greek Letters for each society's name, and not to a Greek ethnicity. For brevity, the sections below make extensive use of Greek letters, one of the first items in a new member's instruction program. Most fraternities use two or three Greek letters to signify their symbolic or secret names; a few use non-Greek words.

History

The first fraternity at Massachusetts Institute of Technology was Chi Phi, established in March 1873. However, its charter was withdrawn in 1878. Chapters of Alpha Tau Omega and Theta Xi were chartered in 1885. In 1886, there were three fraternities at MIT, with a total membership of 39.
In 1886, Sigma Chi became the first MIT fraternity with facilities, renting rooms for its meetings and gatherings. This model was soon followed by the other fraternities. Many MIT fraternities are located in Boston because the institute was originally located in the Back Bay neighborhood, and had no dormitories to house its students. The fraternities and various dining clubs met a need for room and board that was not provided by the operations of the campus. Fraternity housing has continued to expand, both in terms of the size and quality of the individual buildings as well as the number of chapters. Several of MIT's fraternity buildings are today listed on the National Register of Historic Places or are otherwise notable, including former governor's mansions, college deans' mansions, and homes of various early leaders who once resided there. A cursory search of Institute yearbooks will show that dining, and later, fine dining, has remained of particular interest to participants. Many chapters extol the quality of their gourmet or commercial kitchens in their photo tours and rush materials.
In 1900, 16.1 percent or 234 students were members of MIT's eight fraternities. Within the next six years, Delta Psi had formed from The No. 6 Club, the local fraternity Phi Beta Epsilon had formed, and chapters were chartered for the national fraternities Chi Phi, Delta Kappa Epsilon, Delta Tau Delta, Delta Upsilon, and Phi Gamma Delta. By 1915, MIT had twenty fraternities with 481 active members or 29 percent of the student body. Around that time, the fraternities organized into the Interfraternity Council which coordinated recruitment and intramural Greek athletics such as baseball and bowling. One early tradition established by the IFC with the support of faculty was a trophy for the best scholarship record; the trophy was a grandfather clock that was passed on to the fraternity with the best overall grade average after each term.
MIT moved to its Cambridge campus in 1916, and newer independent living groups have sprouted up or moved in around it. Older organizations are located along Newbury Street, convenient to the old campus. Because of the move, MIT doesn't have a specific Greek Row; instead, chapter houses are scattered on both sides of the Charles River in Boston, Cambridge, and the surrounding towns.
provides a window to the growth and popularity of MIT's Greek organizations for almost 150 years.

Demographic changes

From the 1860s through World War II, MIT students were almost entirely male, thus, the formation of women's fraternities or sororities came much later. By the 2000s, the Institute's undergraduate gender ratio reached near parity. En route to this more balanced, modern phase, a period of demographic and political change in the 1960s and 1970s, following larger national trends, resulted in the conversion of several all-male, nationally affiliated living groups into local co-ed groups and led to the expansion of all-female and co-ed housing options. Most of the resultant fraternities, sororities, and independent living groups are coordinated through the Office of Fraternities, Sororities, and Independent Living Groups, though some independent "MIT-area" chapters do arise from time to time, along with those that serve students from multiple schools in Boston and the surrounding cities.

Recruitment traditions

Traditionally, fraternity and sorority recruitment or rush at MIT occurred during Residence/Orientation Week, which was the final week of each summer before the start of the fall semester. All incoming freshmen and transfer students would arrive on campus a week before Registration Day, the official start of the fall semester. During R/O Week, the incoming class would participate in orientation activities, take the so-called writing test to attempt to test out of the MIT Writing Requirement, and participate in residence selection. All students were free to participate in the fraternity, sorority, and independent living group rush. Those students who did not end up in an off-campus living group would also participate in the dorm selection process.
Freshman housing rush was eliminated in an initiative led by MIT president Charles Vest in the wake of the September 1997 death of Phi Gamma Delta freshman Scott Krueger. Beginning with the 2002–2003 academic year, all freshmen were required to live on campus. The old fraternity rush has been depressurized, with recruiting spread out throughout the first academic year, and less-frantic rush events for prospective new members.

Fraternities

As of the fall of 2023, 43 percent of MIT's male students belong to a fraternity. Fraternities constituting the Interfraternity Council are listed by dates of local founding and noted with national conference membership. These are men's organizations, voluntarily coordinating their efforts within the IFC as a self-governing body. As part of IFC or national organization self-governance or University disciplinary action, chapters may be suspended or closed for a time. In the following lists, if a chapter is closed, it will be grouped under inactive chapters, italicized, while active chapters or those suspended for a brief time are in bold.

Active fraternity chapters

Following are the active fraternities at MIT.

Fraternity chapters with name changes

Following are former names of fraternities at MIT.
  • Navajo Club - 1878–1890, an interim group that became ΧΦ
  • Number 6 Club -1887–1889, became ΔΨ
  • ΑΕ - Alpha Epsilon, 1902–1906, became ΘΔΧ
  • ΛΦ - Lambda Phi, 1906–1925, inspired ΑΔΦ
  • ΚΘ - Kappa Theta, 1908–1913, became ΒΘΠ
  • ΔΚΦ - Delta Kappa Phi, 1912–1914, became ΚΣ
  • ΣΑΜ - Sigma Alpha Mu, 1917–1973, became Fenway House, an Independent Living Group
  • ΦΚ - Phi Kappa, 1918–1959, became ΦΚΘ
  • ΤΕΦ - Tau Epsilon Phi, 1919–1930, 1957–2023, co-ed, became Xi Fellowship
  • ΦΒΔ - Phi Beta Delta, 1920–1941, Jewish,
  • ΦΣΔ - Phi Sigma Delta, 1921–1927, Jewish,
  • Sigma Nu Club - 1921–1922, became ΣΝ
  • ΦΜΔ - Phi Mu Delta,1922–1977, became ΝΔ
  • ΨΔ - Psi Delta , 1922–1932,, became ΦΔΘ
  • ΣΩΨ - Sigma Omega Psi, 1922–1935?, Jewish, became ΑΕΠ
  • Alpha Club - 1929–1929, became ΑΚΠ
  • ΑΚΠ - Alpha Kappa Pi - 1929–1940, became ΑΣΦ
  • Pegis Club - 1948–1952, became ΣΦΕ
  • Dover Club - 1956–1961, became ΖΒΤ
  • ΠΚΑ - Pi Kappa Alpha, 1970–1981, 2010-11, became pika, an Independent Living Group
  • ΔΠ - Delta Pi, 1990–1995, became '''ΣΝ'''

Inactive fraternity chapters

Following are the inactive fraternities at MIT.

Sororities

As of the fall of 2023, 23 percent of MIT's female students belong to a sorority. The sororities, listed below with dates of local founding and national conference membership, are women's organizations that voluntarily coordinate their efforts within MIT's Panhellenic Association. For convenience, the term "sorority" is used throughout, though some of these organizations are "women's fraternities," and were so named before the popularization of the term sorority. The terms are synonymous. Sorority properties are generally owned or leased by a chapter's alumni club, though some chapters do not have housing. As part of PHA or national organization self-governance, or University disciplinary action, chapters may be suspended or closed for a time. If a chapter is closed and/or forfeits its housing, it will be listed as a dormant chapter.
In the following lists, if a chapter is closed, it will be grouped under inactive chapters, italicized, while active chapters or those suspended for a brief time are in bold. Following are the sororities and women's fraternities at MIT, with National Panhellenic Conference indicated by NPC.

Active sorority chapters

Sororities chapters with name changes

  • ΗΣΜ - Eta Sigma Mu, 1890–1895, became The Cleofan.
  • Bon 3 Club, 1968–2014, became ΧΛΜ
  • Club Amherst, 1981–1984, became ΑΦ
  • The Thalians, 1985–1986, became ΑΧΩ
  • ΣΙΦ - Sigma Iota Phi , 1992–1995, became '''ΑΕΦ'''

Inactive sorority chapters

Following are the inactive sororities and women's fraternities at MIT.

Multicultural Greek Council

Originally ethnic or language-affiliated, these organizations are now fully integrated, as are MIT's general Greek letter organizations and ILGs. They make up the fourth Greek Council within FSILG. Their historical affiliation may be reviewed by reading their local or national histories. Some of the men's groups also participate in IFC events, and the women's groups in PHA events.
Multicultural Greek Council chapters are non-residential and often serve several schools in the Boston area. Additional schools are listed in the references for each group. They may or may not be under the authority of the Office of FSILG. Further, the historically Black Greek associations have adopted a heightened focus on alumni and adult programming, usually with distinct alumni chapters that also exist locally. On the MIT campus, the inter-Greek councils will, as needed, cooperate on programs and policies, as do individual chapters from among the several Greek councils.
Following are the active MGC fraternities and sororities at MIT, listed by date of local founding and national conference membership, these are either men's or women's organizations, voluntarily coordinating their efforts within the larger Multicultural Greek Council. In the following lists, if a chapter is closed, it will be grouped under inactive chapters, italicized, while active chapters or those suspended for a brief time are in bold.

Active cultural fraternity chapters

Active cultural sorority chapters

Inactive historically cultural fraternity chapters

  • ΨΑΚ - Psi Alpha Kappa, 1901–1904, Latin American
  • ΠΔΦ - Pi Delta Phi, 1916–1921, Latin-American, became ΦΛΑ
  • ΦΛΑ - Phi Lambda Alpha, 1921-1931?, Latin-American, became ΦΙΑ

Professional fraternities and sororities

emphasize developing skills in a specific major or field of study over social life. Membership includes both students and faculty of a specific field. Professional Fraternity Association members are indicated by PFA.

Active professional fraternity chapters

Inactive professional fraternity chapters

The following professional fraternities formerly operated at MIT.
  • ΑΧΣ - Alpha Chi Sigma, 1919–1954, 19??–2009, chemistry
  • Scarab, 1921–?, architecture, national disbanded.
  • ΚΗΚ - Kappa Eta Kappa, 1924–1944, electrical engineering, computer engineering or computer science

Honor and recognition fraternities

recognize students who excel academically or as leaders among their peers, usually within a specific academic discipline. In the following lists, if a chapter is closed, it will be grouped under inactive chapters, italicized, while active chapters or those suspended for a brief time are in bold. Following are the honor societies at MIT, with members of the Association of College Honor Societies indicated by ACHS.

Active honor society chapters

Inactive honor society chapters

Service fraternities

were formed with the intent of providing campus and community service. These organizations are self-governed. Following are the service fraternities at MIT. PFA indicates current or past membership in the Professional Fraternity Association.