List of social fraternities and sororities

Social or General Fraternities and Sororities, in the North American fraternity system, are those not associated with a particular profession (as Professional fraternities are) or discipline (such as Service fraternities and sororities). Instead, their primary purposes are often stated as the development of character, literary or leadership ability, or a more simple social purpose.

Fraternity is usually understood to mean a social organization composed only of men, and Sorority one of women; co-ed groups are usually called "co-ed fraternities." Traditionally these organizations have names consisting of three or occasionally two letters of the Greek alphabet, leading to their being referred to informally in various contexts as being "Greek". For the purposes of this article, national also includes international organizations, and local refers to organizations that are either composed of only one chapter, or are extremely limited in geographic and chapter roll size.

Nicknames

Due to the large number of Greek organizations, and the confusion that derives from the use of combined Greek letters in predominantly English-speaking nations, many organizations are often informally better-known by their nicknames, than by their Greek letters. These nicknames usually follow certain patterns:

A nickname based on the Greek letters of Alpha Phi Delta would be APD
An initialism based on the letters, either in Greek form or their Anglicized equivalent. Examples include Alpha Epsilon Pi as "A-E-Pi," Delta Upsilon as "D-U,", Kappa Alpha Order as "KA", or Kappa Delta Rho as "KDR".
An invented word based on the letters, such as "Pike" from Pi Kappa Alpha, "Fiji" from Phi Gamma Delta, or "Sammy" from Sigma Alpha Mu.
To shorten the names of the letters themselves, for example Psi Upsilon as "Psi U", Pi Kappa Phi as "Pi Kapp", Sigma Phi Epsilon as "SigEp", or Phi Delta Theta as "Phi Delt".
To eliminate letters: Pi Beta Phi as "Pi Phi" or Phi Kappa Tau as "Phi Tau".
To use the dominant letter in the organization name, for example "Betas" for Beta Theta Pi, "Kappas" for Kappa Kappa Gamma, "Delts" for Delta Tau Delta, or "Thetas" for Kappa Alpha Theta.
For non-Greek lettered organizations, the use of an abbreviated word or phrase. For example, members of the "Franklin Society" can be nicknamed "Franklins."

Fraternities

National organizations

North-American Interfraternity Conference

Acacia
AΓΡ - Alpha Gamma Rho, "AGR" or "Agger"
ΑΓΣ - Alpha Gamma Sigma
ΑΔΓ - Alpha Delta Gamma, "ADG"
ΑΔΦ - Alpha Delta Phi, "Alpha Delt" or "A.D.'s" or "A D Phi"
ΑEΠ - Alpha Epsilon Pi, "AE Pi"
ΑΚΛ - Alpha Kappa Lambda, "AKL"
AMΦ - Alpha Mu Phi, "AMP" "ANCHORIANS" or "MUANCE"
ΑΣΦ - Alpha Sigma Phi, "Alpha Sig"
ΑΤΩ - Alpha Tau Omega, "ATO" or "Taus"
AΦA - Alpha Phi Alpha"Alphas" or "A-Phi-A"
AΦΔ - Alpha Phi Delta, "APD"
ΑΧΡ - Alpha Chi Rho, "Crow"
BΣΨ - Beta Sigma Psi, "Beta Sig"
ΒΘΠ - Beta Theta Pi, "Beta"
ΒΧΘ - Beta Chi Theta, "Beta Chi"
ΔΧ - Delta Chi, "D. Chi"
ΔΚΕ - Delta Kappa Epsilon, "DKE" or "Deke"
ΔΦ - Delta Phi, "D.Phi's"
ΔΣΦ - Delta Sigma Phi, "Delta Sig"
ΔΤΔ - Delta Tau Delta, "Delts"
ΔΥ - Delta Upsilon, "DU" or "Ducks"
FarmHouse
ΖΒΤ - Zeta Beta Tau, "ZBT" or "Zebe"
ΖΨ - Zeta Psi, "Zetes" (pronounced Zates)
ΘΞ - Theta Xi, "The Taxi", "T X"
ΘΧ - Theta Chi
ΘΔΧ - Theta Delta Chi, "Theta Delt", "TDX" or "TDC"
IΦΘ - Iota Phi Theta, "Iotas" or "I-Phi-Theta"
INΔ - Iota Nu Delta Fraternity, Inc., "IND"
ΚΑ - Kappa Alpha Order, "KA" or "The Order"
KAΨ - Kappa Alpha Psi, "Kappas or Nupes"
ΚΑ - Kappa Alpha Society, "KA"
ΚΔΦ - Kappa Delta Phi
ΚΔΡ - Kappa Delta Rho, "KDR"
KΣ - Kappa Sigma, "Kappa Sig"
ΛΘΦ - Lambda Theta Phi, "Lambdas"
ΛΣΥ - Lambda Sigma Upsilon, "LSU"
ΛΦΕ - Lambda Phi Epsilon, "Lambdas", "LiFE", or "LPhiE"
ΛΧΑ - Lambda Chi Alpha, "Lambda Chi"
ΠΚΑ - Pi Kappa Alpha, "Pi-K-A", "Pika", or "Pike" (traditional)
ΠΚΦ - Pi Kappa Phi, "Pi Kapp"
ΠΛΦ - Pi Lambda Phi, "Pi Lam"
ΣΑΕ - Sigma Alpha Epsilon, "SAE", "Sig Alps"
ΣΑΜ - Sigma Alpha Mu, "Sammy," "SAM"
ΣBP - Sigma Beta Rho, "SigRho"
ΣN - Sigma Nu, "Knights", "SigNu", "SNu", "Snakes", "Snukes"
ΣΠ - Sigma Pi
ΣΦ - Sigma Phi Society
ΣΦΔ - Sigma Phi Delta, "SigPhi"
ΣΦΕ - Sigma Phi Epsilon, "SigEp" or "SPE"
ΣΧ - Sigma Chi, "Sigs", "Sigmachi" (pronounced: Sig ma chi)
ΣΤΓ - Sigma Tau Gamma, "SigTau"
TΔΦ - Tau Delta Phi, "TauDelt"
ΤΕΦ - Tau Epsilon Phi, "Tep"
ΤΚΕ - Tau Kappa Epsilon, "TKE" or "Teke"
Triangle Fraternity
Phi Gamma Delta, "FIJI" or "Phi Gam" (In accordance with their International bylaws, FIJI's only display their Greek letters at seven different locations)
ΦΙΑ - Phi Iota Alpha, "Phiotas"
ΦΚΘ - Phi Kappa Theta, "Phi Kap"
ΦΚΣ - Phi Kappa Sigma, "Skulls" and "Phi Kaps"
ΦΚΤ - Phi Kappa Tau, "Phi Tau"
ΦΚΨ - Phi Kappa Psi, "Phi Psi" "Psi's"
ΦΛΧ - Phi Lambda Chi, "Phi Lambs"
ΦΜΔ - Phi Mu Delta
ΦΣΚ - Phi Sigma Kappa, "Phi Sig"
ΦΣΦ - Phi Sigma Phi
ΧΦ - Chi Phi
ΧΨ - Chi Psi, "Lodgers"
ΨΥ - Psi Upsilon, "Psi U"