|Tau Epsilon Phi|
|Founded||October 10, 1910|
|Motto||Friendship, Chivalry, Service |
The Lily of the Mountain and|
The Violet in combination 
|Jewel||Emeralds and Pearls |
Tau Epsilon Phi (ΤΕΦ), commonly known as TEP or Tep, is an American fraternity with 13 active chapters, 5 active colonies, and 10 official alumni clubs  chiefly located at universities and colleges on the East Coast. The national headquarters is located in the New Jersey township of Voorhees and the official colors of the organization are lavender and white (although most chapters use purple instead of lavender). 
The organization's creed asserts its governing ideals as "friendship, chivalry, service." TEP attracts and accepts brothers of all religions and ethnicities who agree to be bound by these ideals. Chapters uphold these ideals through participation in various social, academic, athletic and charity events.
The organization was founded on October 10, 1910 by ten Jewish men at Columbia University, as a response to the existence of similar organizations which would not admit Jewish members.  The first pledge, Maximillian Nemser, was initiated in 1911 and, in 1912, the first new chapter was founded at New York University.  Continued expansion led to the adoption of a national constitution in 1916. 
In 1920, the opening of a chapter at McGill University in Canada's then-largest city, Montreal, made ΤΕΦ an international fraternity.  The McGill chapter has since been disbanded. The oldest remaining chapter, as of 2015, is the Nu chapter at University of Georgia. Beginning in 1923, the organization has published a nationally distributed magazine, The Plume. 
ΤΕΦ began as exclusively Jewish, but began admitting non-Jewish members (predominantly Catholics) in the 1950s.  President Dwight D. Eisenhower was inducted as an honorary member during his administration.  Washington, D.C. mayor Vincent C. Gray was the first black member of Tau Epsilon Phi and was elected president of his local chapter for two consecutive terms. 
In 1986, Sidney Suntag, who served as Executive Secretary from 1946 to 1979, published the book The History of Tau Epsilon Phi: 75 Years of Friendship 1910–1985 recounting the national history of the fraternity. 
In September 2010, a group of fraternity members filed a civil lawsuit against the national Tau Epsilon Phi organization. The plaintiffs alleged that the national executive director and board of directors had been operating the fraternity for personal financial gain and that they drove chapters away by making unreasonable financial demands on them (the fraternity had shrunk from 42 active chapters in 1999 to just 13 in 2010). They further argued that the executive director failed to hold elections for the position for over 10 years, even though the fraternity's constitution required it biannually. The executive director stated that elections could not take place because none of the chapters were in good standing due to failure to pay dues, and thus there was no one who could legitimately vote.  While the judge in the case ordered a new election overseen by an independent party,  that order was automatically stayed after the national organization filed for Chapter 7 bankruptcy in January 2011.  In May 2011, all allegations were rescinded,  the parties settled all outstanding cases and the fraternity agreed to hold new national elections. 
As of October 25, 1997, the Constitution of Tau Epsilon Phi required that a Grand Chapter meeting be held every two years. The Grand Chapter consists of delegates from each local undergraduate and alumni chapter. The Grand Chapter serves as the supreme legislature with sole responsibility for electing the Grand Council. The Grand Chapter, while in session, also serves as TEP’s Board of Directors, authorizing or approving all fraternity business, including any modifications to the Constitution and Statutory Code. 
Some notable alumni: 
Arts and entertainment:
- Jeff Altman – stand-up comedian
- Larry David – actor, writer, comedian, and television producer
- David Duchovny – actor, writer and director
- Mat Franco – entertainer, magician, winner of Season 09 of America's Got Talent
- Benny Goodman – musician and bandleader
- Larry King – TV and radio host
- Gary Kott – writer and supervising producer of The Cosby Show, Kott worked on the program during its five consecutive years of number one Nielsen ratings.
- Harold Rome - Tin Pan Alley and Broadway songwriter
- Ed Sabol – filmmaker, founder of NFL Films
- Robert Sherman – songwriter
- Jerry Springer – TV and radio host
- George Stephanopoulos – TV journalist
- Joseph Wapner – judge, The People's Court
Sports and athletics:
- Red Auerbach – general manager, Boston Celtics
- Bryan Clark – professional wrestler
- Jared Ross – professional hockey player
- Eddie Fogler – college basketball coach
- Howie Roseman – general manager, Philadelphia Eagles
- Jedd Fisch – offensive coordinator, Michigan Wolverines
- Bob Vogel - college and professional football player Ohio State University Buckeyes and Baltimore Colts
- Neal Walk - college and professional basketball player University of Florida and various NBA teams
Politics and government:
- Omar Bradley – General of the Army and Chairman of the Joint Chiefs of Staff (accepted honorary membership)
- Dwight D. Eisenhower – 34th President of the United States (accepted honorary membership)
- Kenneth A. Gottlieb, representative in the House of Representatives of Florida
- Vincent C. Gray – mayor, Washington, D.C.
- Louis Harris – founder, Harris Poll
- Irving R. Kaufman – judge, United States Court of Appeals for the Second Circuit
- Rick Kriseman - Mayor, St. Petersburg, Florida
- Elliott H. Levitas – U.S. Representative, Georgia's 4th congressional district
- Marvin Mandel – governor, Maryland
- David Saperstein - United States Ambassador-at-Large for International Religious Freedom, the first non-Christian to hold this office.   
- Melvin Steinberg – fifth Lieutenant Governor of Maryland
- Kirill Reznik – state delegate, Maryland House of Delegates
- Michael S. Steele – lieutenant governor, Maryland and Chairman, Republican National Committee
- Rick Santorum – U.S. Senator, Pennsylvania
- Leo M. Gordon – judge, United States Court of International Trade
- Robert C. Wright - Pennsylvania State Representative and judge Delaware County Court of Common Pleas
Business, science, and engineering:
- Max Abramovitz – architect 
- Sir Cary Cooper CBE - Professor and renowned British psychologist, President of the British Academy of Management, President of Chartered Institute of Personnel and Development
- Samuel J. LeFrak – chairman, LeFrak Corporation
- Jonas Salk – discoverer of polio vaccine
- Raymond Kurzweil – author and inventor
- Harris Rosen - hotelier, investor, and businessman. Founder of the Rosen Hotels & Resorts
- Bernard Siegel – director, Genetics Policy Institute
- Chad Trujillo – astronomer and co-discoverer of 12 trans-Neptunian objects, including Eris
- Neil Woodward – American Naval officer and a former NASA astronaut
- David S. Salomon, Phd. – Breast Cancer Researcher, Cancer gene discoverer.
- Constitution of Tau Epsilon Phi
- "Chapter List".
- Suntag, Sid (1986). The history of Tau Epsilon Phi: 75 years of friendship, 1910-1985. TEP Foundation. ASIN B0006EW86Y.
- G'Town Gravyboat. "Herb Miller says he wants to join Mayor Gray administration" in The Georgetown Dish, September 27, 2010.
- Eligon, John (November 21, 2010). "Tau Epsilon Phi, Founded 100 Years Ago at Columbia, Is Convulsed by a Lawsuit". The New York Times. Retrieved November 30, 2012.
- Eligon, John (January 28, 2011). "A Fraternity's Fight Could Lead to Its End". The New York Times. Retrieved November 30, 2012.
- Eligon, John (22 July 2011). "Settlement Ends Bitter Infighting at a Fraternity". The New York Times. Retrieved 6 December 2012.
- "Notice of Settlement". Tau Epsilon Phi. Retrieved November 30, 2012.
- Famous Alumni
- Obama Nominates Rabbi to Religious Freedom Post, Time.com, July 28, 2014, Retrieved 19 December 2014
- US Senate approves rabbi as freedom of faith envoy, Times of Israel, 15 December 2015. Retrieved 15 December 2014
- Rabbi David Saperstein confirmed as U.S. Ambassador for Religious Freedom, AL.com, 17 December 2014, Retrieved 19 December 2014
- Illio. Champaign, Illinois. 1929. p. 52.