Alpha Delta Phi

Alpha Delta Phi, known as ADP, is a coed Greek organization whose (very large) house is located on Frat Row.

Although founded as a formal fraternity in 1836, Columbia's first such organization, the group is now known as a sort of alternative to fraternities and sororities and this reputation is reflected by its membership, a collection of bohemian/hipster types. As such, ADP has been referred to as a "literary society" as often as it has been called a "fraternity".

They throw a popular event called "Hot Jazz" every year, although it was cancelled in 2007 due to ADP's inability to get permission from Columbia.  This is further evidence that they are different from fraternities, since "real" fraternities don't feel the need to get permission from the university to throw parties.

Notable alumni

• Ben Stein CC '66
• Thomas Merton CC '37