# List of Cornell University fraternities and sororities

This article includes Cornell University's fraternities and sororities. The Cornell University Greek system dates to the first months of university operation during the autumn of 1868. Cornell's co-founder and first president, Andrew Dickson White, was a strong promoter of fraternities as a means of teaching self-governance to young students. Among its leaders, other strong supporters of the Greek system were Presidents Edmund Ezra Day and Frank H.T. Rhodes.
Among general ("social") organizations, Cornell currently recognizes 29 Interfraternity Council fraternities, 11 Panhellenic Association sororities, and 15 Multicultural Greek and Fraternal Council fraternities and sororities.

## Interfraternity Council

Fraternities constituting the Interfraternity Council (IFC) are listed by dates of local founding and noted with national conference membership where applicable. As of 2023, there are two gender-neutral and 29 male-only fraternities. Fraternities may be suspended ("de-recognized") or closed for disciplinary or other reasons as determined by the IFC, governing bodies, including national organizations, and/or the University. Dormant houses, which include both closed fraternities and/or those that have forfeited their housing, are italicized. Active houses, including those that have been suspended for a year or less, are in bold.

### Active chapters

NIC indicates current members of the North American Interfraternity Conference; PFA indicates current and former members of the Professional Fraternity Association; Unaffiliated indicates former members of the NIC.
| Organization | Letters | Chapter | Charter date and range | Affiliation | Chapter house address |
| Zeta Psi | ΖΨ | Psi | 1868 | NIC | 534 Thurston Avenue |
| Chi Phi | ΧΦ | Xi | 1868–1881, 1888 | NIC | 107 Edgemoor Lane |
| Alpha Delta Phi | ΑΔΦ | Cornell | 1869 | NIC | 777 Stewart Avenue |
| Chi Psi | ΧΨ | Psi | 1869–1875, 1885–2014, 2016 | NIC | 810 University Avenue |
| Delta Upsilon | ΔΥ | Cornell | 1869–2002, 2004 | NIC | 6 South Avenue |
| Delta Phi | ΔΦ | Cornell | 1891–2018, 2022 | NIC | 100 Cornell Avenue |
| Delta Kappa Epsilon | ΔΚΕ | Delta Chi | 1870–2013, 2017 | NIC | 13 South Avenue |
| Phi Delta Theta | ΦΔΘ | New York-Alpha | 1872–1876, 1886–1970, 1973 | NIC | 2 Ridgewood Road |
| Beta Theta Pi | ΒΘΠ | Beta Delta | 1879 | NIC | 100 Ridgewood Road |
| Phi Gamma Delta | ΦΓΔ (FIJI) | Cornell | 1888–1989, 1993–2020, 2022 | NIC | 118 McGraw Place |
| Phi Sigma Kappa | ΦΣΚ | Gamma | 1889 | NIC | 702 University Avenue |
| Delta Chi | ΔΧ | Alpha | 1890–2003, 2007 | NIC | 102 The Knoll |
| Delta Tau Delta | ΔΤΔ | Beta Omicron | 1890 | NIC | 104 Mary Ann Wood Drive |
| Sigma Chi | ΣΧ | Alpha Phi | 1890 | NIC | 106 Cayuga Heights Road |
| Sigma Phi | ΣΦ | New York-Epsilon | 1890 | NIC | 1 Forest Park Lane |
| Sigma Alpha Epsilon | ΣΑΕ | Cornell | 1891–1895, 1898–2011, 2022 | NIC | 122 McGraw Place |
| Kappa Sigma | ΚΣ | Alpha Kappa | 1892–2010, 2012 | Independent | 600 University Avenue |
| Alpha Zeta | ΑΖ | Cornell | 1901 | PFA | 214 Thurston Avenue |
| Sigma Nu | ΣΝ | Gamma Theta | 1901–2018, 2021 | NIC | 230 Willard Way |
| Seal and Serpent | | | 1905 | Independent | 305 Thurston Avenue |
| Acacia | | No. 14 Cornell | 1907 | NIC | 318 Highland Road |
| Zeta Beta Tau | ΖΒΤ | Kappa | 1907–1982, 1989–2013, 2014 | NIC | 1 Edgecliff Place |
| Alpha Sigma Phi | ΑΣΦ | Iota | 1909 | NIC | 804 Stewart Avenue |
| Sigma Alpha Mu | ΣΑΜ | Beta | 1911–1912, 1915–1973, 1985–2021, 2022 | NIC | 14 South Avenue |
| Kappa Delta Rho | ΚΔΡ | Beta | 1913–1943, 1950 | NIC | 312 Highland Road |
| Lambda Chi Alpha | ΛΧΑ | Omicron | 1913 | NIC | 125 Edgemoor Lane |
| Alpha Gamma Rho | ΑΓΡ | Zeta | 1914 | NIC, PFA | 203 Highland Avenue |
| Pi Kappa Alpha | ΠΚΑ | Beta Theta | 1917-2010, 2013 | NIC | 17 South Avenue |
| Sigma Pi | ΣΠ | Mu | 1917 | NIC | 730 University Avenue |
| Pi Kappa Phi | ΠΚΦ | Psi | 1921–1937, 1949–1986, 1990–2001, 2002 | NIC | 55 Ridgewood Road |
| Phi Kappa Tau | ΦΚΤ | Alpha Tau | 1930–1994, 2000 | NIC | 106 The Knoll |

### Chapters with name changes

* Irving Society - 1868–1869, evolved into ΦΚΨ
* ΑΣΧ - Alpha Sigma Chi, 1871–1879, absorbed into ΒΘΠ
* ΕΚΠ - Epsilon Kappa Pi (local), 188x ?–1888, became ΦΓΔ
* L and J Club - 1895–1913, became ΩΔ (see ΣΠ)
* Skull - 1901–1918, became ΦΔΣ
* Bandhu - 1902–1918, became ΦΔΣ$^{:10thed,687}$
* ΘΛΦ - Theta Lambda Phi, 1903–1912, became ΣΦΕ
* Zodiac - 1904–1936, absorbed into ΑΤΩ after a failed absorption by Beta Kappa
* Cerberus - 1904–1911, became ΦΚΣ
* Cayuga Club - 1905–1910, became ΣΦΣ (see ΤΚΕ)$^{:VIII-23}$
* ΩΠΑ - Omega Pi Alpha, 1905–1907, see Nayati (local)$^{:7thed}$
* ΚΨ - Kappa Psi, 1907–1923, local, became ΤΚΕ$^{:7thed}$
* Nayati - 1907–1919, local, became ΔΣΦ$^{:VIII-12}$
* Obelisk - 1907-1910, local, see ΑΧΡ
* ΦΔΣ Phi Delta Sigma, 1908–1930, became ΦΚΤ
* ISWZA - 1908–1913, local, became ΛΧΑ
* Arts and Science Club - 1908–1922, became ΑΦΔ
* Amphia - 1909-1912, became ΘΧ
* ΒΣ - Beta Sigma (local), 1910–1911, Jewish, became ΠΛΦ
* Βס - Beta Samach, 1910–1920, Jewish, became ΒΣΡ
* ΣΦΣ - Sigma Phi Sigma, 1910–1941, see ΤΚΕ$^{:VIII-23}$
* ΦΕΠ - Phi Epsilon Pi, 1911–1970, became ΖΒΤ
* Cadeucus - 1911–1914, local, became ΑΓΡ
* Eleusis, 1912–1931, local, became ΘΚΝ, (see ΛΧΑ).
* ΑΘ - Alpha Theta, 1912–1917, local, became ΠΚΑ
* ΟΑΤ - Omicron Alpha Tau, 1912–1934, Jewish, merged with ΤΔΦ
* ΦΣΔ - Phi Sigma Delta, 1912–1970, became ΖΒΤ$^{:VIII-13}$
* ΦΒΔ - Phi Beta Delta, 1912–1918, 1934–1941, Jewish, see ΠΛΦ$^{:III-106}$$^{:NYstateappendixsection}$
* ΩΔ - Omega Delta, 1913–1917, local, became ΣΠ
* ΟΣΟ - Omicron Sigma Omicron, 1914–1915, local, became ΘΑ, (see ΔΣΛ)
* ΘΑ - Theta Alpha, 1915–1933, see ΔΣΛ$^{:VIII-25}$
* ΦΤ - Phi Tau, 1915–1916 (local), Jewish, became ΑΕΠ
* Komos Club - 1916–1921, became ΠΚΦ
* ΒΣΡ - Beta Sigma Rho, 1920–1972, Jewish, merged with ΠΛΦ$^{:VIII-25}$
* Scorpion Club - 1923–1940, became ΤΚΕ
* ΦΔΜ - Phi Delta Mu, 1925–1934, Jewish, see ΦΒΔ
* ΒΨ - Beta Psi, 1926–1935, dormant, see ΒΚ
* ΣΩΨ - Sigma Omega Psi, c. 1927–1934?, Jewish, see ΑΕΠ$^{:VIII-22}$
* ΘΚΦ - Theta Kappa Phi, 1927–1931, became ΦΚΘ$^{:VIII-25}$
* ΘΚΝ - Theta Kappa Nu, 1931–1939 (NIC), merged into ΛΧΑ
* ΒΚ - Beta Kappa, 1934–1936 (NIC), see ΘΧ$^{:VIII-5}$
* Cornell Engineering Men - 194x ?–1942, local, became Triangle
* ΚΝ - Kappa Nu, 1951–1963, Jewish, see ΦΣΕ
* ΦΑ - Phi Alpha, 1953–1959, Jewish, merged into ΦΣΔ (see ΖΒΤ)$^{:VIII-13}$
* ΦΣΕ - Phi Sigma Epsilon, 1963–1985 (NIC), see ΦΣΚ and ΘΧ.
* ΦΔΑ - Phi Delta Alpha, 1970–1973, see ΦΔΘ

### Dormant chapters

* ΚΑ - Kappa Alpha Society, 1868–1990, 2007–2018 (NIC)
* ΑΩ - Alpha Omega, 1868–1870, local$^{:6thed}$
* ΦΚΨ - Phi Kappa Psi, 1869–1877, 1885–2020 (NIC)
* ΘΔΧ - Theta Delta Chi, Beta Charge, 1870-1999, 2003–2023, NIC. Agreed to withdrawal of recognition for at least three years, effective fall 2023, for violations of social event policy
* ΣΔΠ - Sigma Delta Pi (Vitruvian), 1871–1874$^{:8thed}$
* ΨΥ - Psi Upsilon, 1876–2016 (NIC)
* ΘΝΕ - Theta Nu Epsilon, 1877–1913
* ΔΒΦ - Delta Beta Phi, 1878–1882$^{:8thed}$
* ΑΤΩ - Alpha Tau Omega, 1887–2013 (NIC)
* Q.T.V. - 1888–1889$^{:7thed}$
* ΠΛΦ - Pi Lambda Phi, 1896–1901, 1911–1976 (NIC)
* ΘΞ - Theta Xi, 1903–1970, 2008–2010, (NIC)
* ΔΣΦ - Delta Sigma Phi, Theta chapter, 1907–1943 (NIC)$^{:III-43–46}$
* ΑΧΡ - Alpha Chi Rho, 1908–1971, 1976–1980, 1992–199x ? (NIC)
* Huntington Club - 1911–1922+, local, Episcopal affinity
* ΦΚΣ - Phi Kappa Sigma, 1911–1991 (NIC)
* ΘΧ - Theta Chi, 1912-1983, 1985–1999 (NIC)
* ΣΦΕ - Sigma Phi Epsilon, 1912–2005, 2006–2019 (NIC)
* ΤΕΦ - Tau Epsilon Phi, 1913–1932, 1939–2012 (NIC)
* Philos Club - 1914–1917, local
* ΣΥ - Sigma Upsilon, 1915–1933, local
* ΦΔΠ - Phi Delta Pi, 1916–1926, Jewish
* ΑΕΠ - Alpha Epsilon Pi, 1917–1976, 1978–2001?, 2005–2023, NIC. Agreed to the withdrawal of recognition for at least three years, effective fall 2023, for violations of social event policy
* ΑΦΔ - Alpha Phi Delta, 1922–1968, 2012–2018 (NIC)
* ΤΚΕ - Tau Kappa Epsilon, 1923-1934, 1940–2012, 2018–2020
* ΦΚΘ - Phi Kappa Theta, 1927–1931 (NIC)$^{:VIII-25}$
* ΔΣΛ - Delta Sigma Lambda, 1933–1936 (DeMolay affiliated)$^{:VIII-8}$
* ΤΔΦ - Tau Delta Phi, Tau Beta chapter,1934–1971 (NIC), Jewish$^{:VIII-24}$
* Triangle, 1942–1985 (NIC)
* ΑΓΣ - Alpha Gamma Sigma, 1972–199x (NIC), agricultural focus
* ΣΧΔ - Sigma Chi Delta, 1981–2020 co-ed local
* ΑΛΜ - Alpha Lambda Mu, Gamma chapter, 2014–2020

## Panhellenic Council

Sororities constituting the Panhellenic Council (PHC) are listed with dates of local founding and national conference membership, these are women's organizations voluntarily coordinating their efforts within the PHC. As part of PHC or national organization self-governance, or University disciplinary action, chapters may be suspended ("de-recognized") or closed for a time. If a chapter is closed and/or forfeits its housing, it will be listed as a dormant chapter. Active groups are in bold, and dormant groups are in italics. See the Office of Student Life for current PHA members.
    NPC indicates members of the National Panhellenic Conference.

### Active chapters

| Organization | Symbols | Chapter | Chapter date and range | Affiliation | Chapter house address |
| Kappa Alpha Theta | ΚΑΘ | Iota | 1881–1965, 1980 | NPC | 519 Stewart Avenue |
| Kappa Kappa Gamma | ΚΚΓ | Psi Deuteron | 1883–1969, 1977 | NPC | 508 Thurston Avenue |
| Delta Gamma | ΔΓ | Chi | 1885 | NPC | 117 Triphammer Road |
| Alpha Phi | ΑΦ | Delta | 1889–1997, 1998 | NPC | 411 Thurston Avenue |
| Pi Beta Phi | ΠΒΦ | NY Delta | 1892–1893, 1919 | NPC | 330 Triphammer Road |
| Delta Delta Delta | ΔΔΔ | Alpha Beta | 1913 | NPC | 118 Triphammer Road |
| Kappa Delta | ΚΔ | Omega Chi | 1917–1969, 1975 | NPC | 109 Triphammer Road |
| Sigma Delta Tau | ΣΔΤ | Alpha | 1917 | NPC | 115 Ridgewood Road |
| Alpha Xi Delta | ΑΞΔ | Alpha Beta | 1918–1964, 2005 | NPC | 40 Ridgewood Road |
| Alpha Epsilon Phi | ΑΕΦ | Kappa | 1920–1971, 197x ? | NPC | 435 Wyckoff Avenue |
| Alpha Chi Omega | ΑΧΩ | Zeta Phi | 1984 | NPC | 210 Thurston Avenue |

### Chapters with name changes

* Sennightly, 1895–1913, became ΔΔΔ
* ΩΧ - Omega Chi, 1916–1917, local, became ΚΔ
* ΦΚ - Phi Kappa, 1916–1917, local, became ΧΩ
* ΔΠΑ - Delta Pi Alpha, 1916–1918, local, became ΑΞΔ
* ΣΔΦ - Sigma Delta Phi, 1917–1919, local, became ΣΔΤ
* ΧΓ - Chi Gamma, 1920–1921, 1956–1964, local, became ΣΚ
* ΣΚ - Sigma Kappa, 1921–1956 (NPC), reverted to local ΧΓ
* ΚΚΨ - Kappa Kappa Psi, 1969–1977, local, re-formed as ΚΚΓ

### Dormant chapters

* ΑΟΠ - Alpha Omicron Pi, 1908–1962, 1989–2008 (NPC)
* ΔΖ - Delta Zeta, 1908–1932 (NPC)
* ΧΩ - Chi Omega, 1917–1963, 1987–2003 (NPC)
* ΣΚ - Sigma Kappa, 1921–1956 (NPC)
* ΦΣΣ - Phi Sigma Sigma, Beta Xi chapter, 1954–1969, 2011–2023 (NPC)
* ΔΦΕ - Delta Phi Epsilon, 1960–1988, 1994–2003 (NPC)
* ΙΑΠ - Iota Alpha Pi, 1966–1967 (NPC), disbanded nationally 1971
* ΑΓΔ - Alpha Gamma Delta, 1985–1996 (NPC)
* ΦΜ - Phi Mu, 2014–2021 (NPC)

## Multicultural Greek and Fraternal Council

Sororities and Fraternities constituting the Multicultural Greek and Fraternal Council (MGFC) were originally affiliated with specific ethnicities or languages. Most of these organizations are now fully integrated, as are the rest of Cornell's Greek letter organizations. All MGFC chapters are. Listed with dates of local founding and national conference membership, these are men's and women's organizations that voluntarily coordinate their efforts within the MGFC. As part of MGFC or University self-governance during disciplinary action, chapters may be suspended ("de-recognized") for a time. Unless the suspensions result in long-term closure of the chapter or forfeiture of a building, they should not be removed from this list. Active groups are in bold, and dormant groups are in italics. See the Office of Student Life for current MGFC members. The inter-Greek councils often cooperate on programs and policies, as do individual chapters from among the several Greek councils.
    NALFO indicates members of the National Association of Latino Fraternal Organizations;
    NAPA indicates members of the National APIDA Panhellenic Association;
    NPHC indicates members of the National Pan-Hellenic Council.

### Men's fraternities

* ΑΦΑ - Alpha Phi Alpha, 1906 (NPHC, NIC)
* ΚΑΨ - Kappa Alpha Psi, 1978 (NPHC, NIC)
* ΦΒΣ - Phi Beta Sigma, 1979 (NPHC, formerly NIC)
* ΛΥΛ - Lambda Upsilon Lambda, 1982 (NALFO)
* ΠΔΨ - Pi Delta Psi, 1998 (NAPA)
* ΛΦΕ - Lambda Phi Epsilon, 1999 (NAPA, NIC)
* MALIK - MALIK, 2015

### Women's fraternities and sororities

* ΔΣΘ - Delta Sigma Theta, 1975 (NPHC)|
* ΛΠΧ - Lambda Pi Chi, 1988 (NALFO)
* ΣΓΡ - Sigma Gamma Rho, 1990 (NPHC)
* ΣΛΥ - Sigma Lambda Upsilon, 1993 (NALFO)
* αΚΔΦ - alpha Kappa Delta Phi, 1997 (NAPA)
* ΚΦΛ - Kappa Phi Lambda, 2000 (NAPA)
* ΖΦΒ - Zeta Phi Beta, 2019 (NPHC)

### Chapters with name changes

* Su Ye She, 1916–1917, Chinese men's group, see Rho Psi
* Club Hispania, 1929–1931, local Hispanic men's group, see Phi Lambda Alpha
* ΦΛΑ - Phi Lambda Alpha, 1931–1931, Hispanic men's group, see Phi Iota Alpha

### Dormant chapters

* ΑΖ - Alpha Zeta, 1890–1894, Hispanic men's group.
* ΡΨ - Rho Psi, 1917–1931, Chinese men's group, no longer active at the collegiate level.$^{:16thed}$
* ΦΙΑ - Phi Iota Alpha, 1931–1940? (NALFO, NIC), men's group
* ΑΚΑ - Alpha Kappa Alpha, 1937–1940, 1952–2018 (NPHC), women's group, dormant.
* ΩΨΦ - Omega Psi Phi, 1982–2019, (NPHC), men's group, dormant
* ΛΘΦ - Lambda Theta Phi, 1995-20xx ? (NALFO, NIC), men's group, dormant.
* ΩΦΒ - Omega Phi Beta, 1999–20xx ? (NALFO), women's group, dormant.
* ΦΘΧ - Phi Theta Chi, 199x–20xx?, Latina, women's group
* ΧΥΣ - Chi Upsilon Sigma, 2003–20xx ? (NALFO), women's group, dormant.
* ΛΘΑ - Lambda Theta Alpha, 2004–20xx ? (NALFO), women's group, dormant.
* ΙΦΘ - Iota Phi Theta, 2005-–20xx ? (NPHC, NIC), men's group, dormant.

## Honor, professional, and service societies

These organizations have a similarly long pedigree on the Cornell campus but are largely non-residential. Members of the social and academic fraternities and sororities may join or be asked to join, as may non-Greek students. Multiple affiliations are allowable. The cut-off line where any campus organization falls within these headings or without is somewhat arbitrary; those formed before 1990 are listed under these subheadings in various volumes of the Baird's Manual of American College Fraternities, which for more than a century has been the data source of record for such organizations. Newer groups have been placed in categories that match Baird's categories. The latest edition of Bairds was published before the national development of some of the societies here, and therefore, position and inclusion are, in some cases, assumptive.

### Honor and recognition societies

Honor societies recognize students who excel academically or as leaders among their peers, often within a specific academic discipline. Many honor societies invite students to become members based on scholastic rank (the top x% of a class) and/or grade point, either overall or for classes taken within the discipline for which the honor society provides recognition. In cases where academic achievement would not be an appropriate criterion for membership, other standards are usually required for membership (such as completion of a particular ceremony or training program). These societies recognize past achievements. Pledging is not required, and new candidates may be immediately inducted into membership after meeting predetermined academic criteria and paying a one-time membership fee. Because of their recognition purpose, most honor societies will have much higher academic achievement requirements for membership than professional societies. It is also common for a scholastic honor society to add a criterion relating to the student's character. Some honor societies are invitation-only, while others allow unsolicited applications. Finally, membership in an honor society might be considered exclusive, i.e., a member of such an organization cannot join other honor societies representing the same field. Governance varies from faculty-guided to purely student-run.
Listed by date of local founding with national conference membership, these are co-ed, non-residential, achievement-based organizations that self-select members based on published criteria.

#### Active chapters

ACHS indicates members of the Association of College Honor Societies.
* ΦΒΚ - Phi Beta Kappa, 1882, academic honors
* ΣΞ - Sigma Xi, 1886, graduate science & engineering honors
* ΦΔΦ - Phi Delta Phi, 1888, law honors
* Sphinx Head Society, 1890, local, character, leadership and service
* Der Hexenkreis, 1892, local, character, leadership and service
* Quill and Dagger, 1893, local, character, leadership and service
* Scabbard and Blade, 1906 (ACHS), military
* ΑΩΑ - Alpha Omega Alpha, 1910, graduate medical honors
* ΤΒΠ - Tau Beta Pi, 1910 (ACHS), engineering honors
* ΗΚΝ - Eta Kappa Nu, 1912, electrical engineering, computer engineering honors
* Order of the Coif, 1914, law school graduates honors
* ΚΟΝ - Kappa Omicron Nu, 1919 (ACHS), humanities honors
* Ye Hosts, 1926, local, hotel administration honors, service
* ΠΑΞ - Pi Alpha Xi, 1923, horticulture honors
* ΑΚΔ - Alpha Kappa Delta, 1925 (ACHS), sociology honors
* ΦΖ - Phi Zeta, 1925, graduate veterinary medicine honors
* ΧΕ - Chi Epsilon, 1925 (ACHS), civil engineering honors
* ΔΦΑ - Delta Phi Alpha, 1933, German honors
* ΠΔΦ - Pi Delta Phi, 1936 (ACHS), French honors
* Block and Bridle, 1937, animal livestock honors
* ΑΕΔ - Alpha Epsilon Delta, 1946 (ACHS), pre-health honors
* ΠΤΣ - Pi Tau Sigma, 1948 (ACHS), mechanical engineering honors
* ΨΧ - Psi Chi, 1948 (ACHS), psychology honors
* ΠΜΕ - Pi Mu Epsilon, 1953, mathematics honors
* ΦΤΣ - Phi Tau Sigma, 1957, food science and technology honors
* ΟΔΕ - Omicron Delta Epsilon, 1961 (ACHS), economics honors
* ΣΘΤ - Sigma Theta Tau, 1968 (ACHS), nursing honors
* ΣΔΠ - Sigma Delta Pi, 1975 (ACHS), Spanish and Portuguese honors
* Order of Omega, 1979, Greek society leadership honors
* Golden Key International Honour Society, 1989, high achievement in academics, leadership & service
* ΦΣΠ - Phi Sigma Pi, 1994, scholastic and leadership honors
* ΩΡ - Omega Rho, 1995 (ACHS), operations research, management science honors
* ΑΕ - Alpha Epsilon, 1998 (ACHS), agricultural, food, and biological engineering honors
* NSCS - National Society of Collegiate Scholars, 1999 (ACHS), high achievement
* ΛΠΗ - Lambda Pi Eta, 2001 (ACHS), communications honors
* ΠΣΑ - Pi Sigma Alpha. 2003 (ACHS), political science honors
* ΒΓΣ - Beta Gamma Sigma, 2004 (ACHS), business academic honors
* ΠΑΑ - Pi Alpha Alpha, 2006 (ACHS), public administration honors
* Red Key Society, 2007, local, Athletics and community-building honors
* NRHH - National Residence Hall Honorary, 2007, residence hall leadership honors
* ΔΑΠ - Delta Alpha Pi, 2012, high achievement with disabilities
* Irving Literary Society, 1868–1887, restarted 2014, local, literary honors
* AAS - Arnold Air Society, 19xx ?, Air Force cadet honors

#### Dormant chapters

ACHS indicates members of the Association of College Honor Societies.
* Aleph Samach, 1893–1983+, junior class men's honors, dormant.
* Chancery, 1890-1980 ?, senior law honors, dormant.[1][2]
* Raven and Serpent, <1896–1983+, junior class women's honors, dormant.
* ΔΣΡ-ΤΚΑ - Delta Sigma Rho-Tau Kappa Alpha, 1911–1999 ?, forensics honor, dormant?
* Mortar Board, 1918–2021, senior class scholarship, leadership and service honors, (see Der Hexenkreis)
* ΦΚΦ - Phi Kappa Phi, 1920–1979, 1983–2013, honors, all disciplines, dormant
* ΣΓΕ - Sigma Gamma Epsilon, 1921–1965, earth sciences honors, dormant
* ΠΕΔ - National Collegiate Players or Pi Epsilon Delta, 1960–19xx ?, theater honors, national disbanded
* ΑΛΔ - Alpha Lambda Delta, 1961–1986, (ACHS) freshmen honors, dormant
* ΦΗΣ - Phi Eta Sigma, 1961–1973, freshman honors, dormant
* ΑΠΜ - Alpha Pi Mu, 1968–1972 (ACHS), industrial engineering honors, dormant
* ΠΣΑ - Pi Sigma Alpha. 2003–20xx ? (ACHS), political science honors, dormant?

### Professional societies

Professional societies work to build friendship bonds among members, cultivate their strengths so that they may promote their profession, and provide mutual assistance in their shared areas of professional study.
Listed by date of local founding with national conference membership, these are primarily co-ed and non-residential organizations of an array of professional interests. Membership in a professional fraternity may be the result of a pledge process, much like a social fraternity, and members are expected to remain loyal and active in the life organization. Within the group of societies dedicated to a professional field of study, for example, law societies, membership is exclusive; however, these societies may initiate members who belong to other types of fraternities. Professional Societies are known for networking and post-collegiate involvement. Governance varies from faculty-managed to purely student-run.
Active chapters
PFA indicates members of the Professional Fraternity Association
* ΓΑ - Gamma Alpha, 1899 biological science graduate students (co-op)
* ΦΔΕ - Phi Delta Epsilon, 1904 (PFA), medical
* ΑΨ - Alpha Psi, 1907, veterinary medicine, (residential)
* ΩΤΣ - Omega Tau Sigma, 1911 (PFA), veterinary (residential)
* ΑΧΣ - Alpha Chi Sigma, 1913 (PFA), chemistry (residential)
* ΣΔΕ - Sigma Delta Epsilon or GWIS, 1921, graduate women in science
* ΦΑΔ - Phi Alpha Delta, 1925 (PFA), pre-law
* ΦΣΠ - Phi Sigma Pi, 1994 (PFA), leadership and scholarship
* ΑΚΨ - Alpha Kappa Psi, 1998 (PFA), business
* ΣΑ - Sigma Alpha, 2002 (PFA), women's, agriculture
* ΔΣΠ - Delta Sigma Pi, 2004 (PFA), business
* ΦΓΝ - Phi Gamma Nu, 2008 (PFA), business
* ΠΛΣ - Pi Lambda Sigma, 2017, government
* ΠΣΕ - Pi Sigma Epsilon, 2011 (PFA), sales and marketing
* ΚΑΠ - Kappa Alpha Pi, 2011, pre-law
* ΘΤ - Theta Tau, 2012 (PFA), engineering
* ΦΧΘ - Phi Chi Theta, 2017 (PFA), business
* ΦΒΛ - Phi Beta Lambda-FBLA, 19xx ?, business
Dormant chapters
PFA indicates members of the Professional Fraternity Association
* ΝΣΝ - Nu Sigma Nu, 1900–19xx ?. medical professional, national disbanded
* ΑΚΚ - Alpha Kappa Kappa, 1901–1941, medical professional, national disbanded
* ΑΕΙ - Alpha Epsilon Iota, 1901–1913, medical professional, national disbanded$^{:VIII-37}$
* ΔΘΦ - Delta Theta Phi, 1903–1953 (PFA), law, dormant
* ΓΗΓ - Gamma Eta Gamma, 1909–1918, law, dormant
* ΣΔΧ - Sigma Delta Chi, 1920–1959, [now SPJ] journalism, dormant
* ΦΧ - Phi Chi, 1921–1956, medical, dormant
* ΚΒΠ - Kappa Beta Pi, 1921–1939 (PFA), was women's legal, dormant
* ΦΛΚ - Phi Lambda Kappa, 1928–1947?, medical, dormant
* ΚΔΕ - Kappa Delta Epsilon, 1933–1960 (PFA), education, dormant
* ΚΦΚ - Kappa Phi Kappa, 1934–1956, education, dormant
* ΦΔΓ - Phi Delta Gamma, 1940–1953, women graduate students, dormant

### Service societies

Service societies are listed with dates of local founding and national conference membership, if any; these are non-residential, co-ed organizations designed to provide campus and community service. These organizations are self-governed.
* ΑΦΩ - Alpha Phi Omega, 1927 (PFA), service
* Greeks Go Green, 20xx ?, local, environmentalism

## Building and property ownership
### Cornell University Residence Plan of 1966

During the 1948-1949 school year, then Cornell University President Edmund Ezra Day formally distanced the university leadership and the increased discrimination that he observed at Cornell since 1910. His speech at the time marked the beginning of an effort to end such unlawful practices, a goal to which the University remains committed. Following hearings into discrimination within Cornell's system of private fraternities and sororities, fifteen fraternities liquidated private holdings and entered into the Cornell University Residence Plan of 1966, or CURP'66, an agreement which required all signatories to refrain from unlawful discrimination. The majority of CURP ’66 houses are on the Cornell West Campus. The plan created a system of 'living and learning' in small residences.
Each Group House was to be maintained by a Priority Group electing its Group Sponsor. Phi Kappa Psi, for instance, sponsored Group House No. IV d/b/a/ The Irving Literary Society, and developed its parcel on Cornell's West Campus. Cornell desired an academic atmosphere in student residence “units,” providing appropriate facilities for intellectual and cultural activities and encouraging student participation in these pursuits. CURP ’66 was not simply the creation of University-owned fraternities and sororities but a plan to provide a supplement to the University-maintained dormitory complex, the existing Cornell Greek System, off-campus apartments, and rooming houses. The vision was to organize “Small Residences” together, regardless of their national or local orientation, as fraternities or cooperatives. The University program provided for no discrimination based on race, creed, color, or national origin. The issue of gender was addressed in the equal promotion of female, male, and gender-neutral Group Houses. In 1997, Cornell's president, Hunter Rawlings, reaffirmed the Board of Trustees' commitment to the Cornell University Residence Plan of 1966.
The current CURP ’66 was created from an existing University leasing system dating to the 1881 decision by Andrew Dickson White to favor fraternities over dormitories. White thought fraternities “’[would] arouse in the students a feeling of responsibility both for the care of the property and for the reputation of the house . . . [and] fastens upon [students’] duties and responsibilities similar to those of men in the active world was among the better solutions of the problems [of] . . . students in American universities.’”$^{:33–34}$ White’s vision, in turn, developed from the professional analysis of American architect and planner, Frederick Law Olmsted, who saw the erection of residential clubhouses on Morrill Land-Grant Colleges Act as a reform over the barracks-like dormitories used by existing American universities and colleges. Like White, Olmsted felt clubhouses maintained by the students would form part of the educational experience. They were to be modeled on the typical rural household of the era, small country villas thought to avoid the negative aspects of the Industrial Revolution.$^{:21–23}$
CURP signatories
* Group House No. I, possessed by Delta Kappa Epsilon, signatory since 1960, 13 South Avenue (in residence);
* Group House No. II, possessed by Delta Tau Delta, signatory since June 8, 1960, 104 Mary Anne Wood Drive (in residence);
* Group House No. III, Chi Phi ("Craigielea"), signatory since November 15, 1960, 107 Edgemoor Lane (in residence);
* Group House No. IV, "Ivy," possessed by Phi Kappa Psi ("The Gables"), signatory since November 30, 1959, 525 Stewart Avenue, service deliveries to 120 Mary Anne Wood Drive; Phi Psi is also the successor organization to the Irving Literary Society. First to sign in to the revised Group Housing Plan in 1959, it was fourth in accession due to negotiations over the sale of its property at 312 Thurston Avenue, the former Wyckoff Mansion (in litigation);
* Group House No. V, possessed by Sigma Phi Epsilon, signatory since 1962, 109 McGraw Place (in residence);
* Group House No. VI, possessed by Delta Upsilon, signatory since 1962, 6 South Avenue (in residence);
* Group House No. VII, occupied by Phi Sigma Sigma, and formerly possessed by Kappa Alpha Society, which was a signatory in 1991 (signing was delayed for three decades, for reasons unknown), 14 South Avenue;
* Group House No. VIII, possessed by Zeta Psi, signatory since 1963, 534 Thurston Avenue (in residence);
* Group House No. IX (demolished 2020), formerly possessed by Chi Omega, signatory since 1963, 10 Sisson Place,; later occupied by Sigma Alpha Mu
* Group House X, occupied by University Residence Life, 201 Thurston Avenue, and formerly possessed by Lambda Upsilon Lambda, signatory since 1965 when the CURP program was closed out in favor of a return to individual leasing.

### Chapters with university-owned facilities under other agreements

The Cornell University Residence Plan of 1966 was based on agreements with other institutions, dating from 1933 to 1952 and after 1965:
* Kappa Alpha Theta, 519 Stewart Ave
* Psi Upsilon, 2 Forest Park Ln
* Sigma Phi, 1 Forest Park Ln
* Kappa Sigma, 600 University Avenue
* Phi Gamma Delta ("The Oaks"), 118 McGraw Pl
* Sigma Alpha Mu, 14 South Ave
* Sigma Phi Epsilon, 109 McGraw Pl
The university-owned property at 722 University Avenue was also leased to several Greek-letter groups, including Pi Kappa Phi, Alpha Gamma Delta, Alpha Chi Rho, Alpha Epsilon Phi, and finally Lambda Upsilon Lambda, which vacated in 2006. The house was demolished in 2017.

### Chapters with privately owned facilities

Many fraternities and sororities have remained outside the ambit of University ownership. As of October 2017, these chapters include the following:
* Acacia (“Northcote”), 318 Highland Rd
* Alpha Chi Omega, 210 Thurston Ave
* Alpha Delta Phi, 777 Stewart Ave
* Alpha Epsilon Phi, 435 Wyckoff Rd
* Alpha Epsilon Pi (“Thurston Manor”), 140 Thurston Ave
* Alpha Gamma Rho, 203 Highland Ave
* Alpha Phi, 411 Thurston Ave
* Alpha Sigma Phi (“Rockledge”), 804 Stewart Ave
* Alpha Tau Omega, 625 University Ave
* Alpha Xi Delta, 40 Ridgewood Rd
* Alpha Zeta, 214 Thurston Ave
* Beta Theta Pi (“Castle on the Rock”), 100 Ridgewood Rd
* Chi Psi, 810 University Ave
* Delta Chi (“The Knoll”), 102 The Knoll
* Delta Delta Delta, 118 Triphammer Rd
* Delta Gamma, 117 Triphammer Rd
* Delta Phi (“Llenroc”), 100 Cornell Ave
* Kappa Alpha Theta, 519 Stewart Ave
* Kappa Delta, 109 Triphammer Rd
* Kappa Delta Rho, 312 Highland Rd
* Kappa Kappa Gamma, 508 Thurston Ave
* Lambda Chi Alpha (“Edgemoor”), 125 Edgemoor Ln
* Phi Delta Theta, 2 Ridgewood Rd
* Phi Kappa Tau, 106 The Knoll
* Phi Mu, 509 Wyckoff Rd
* Phi Sigma Kappa, 702 University Ave
* Pi Beta Phi, 330 Triphammer Rd
* Pi Kappa Alpha, 17 South Ave
* Seal and Serpent, 305 Thurston Ave
* Sigma Chi (“Greystone”), 106 Cayuga Heights Rd
* Sigma Delta Tau, 115 Ridgewood Rd
* Sigma Nu, 230 Willard Wy
* Sigma Pi, 730 University Ave
* Tau Kappa Epsilon (“Westbourne Manor”), 105 Westbourne Ln
* Theta Delta Chi, 800 University Ave
* Zeta Beta Tau, 1 Edgecliff Pl