Postcrypt Coffeehouse is an all-acoustic music venue in the basement of St. Paul's Chapel at Columbia University in New York City, run completely by students.

Founded in 1964, Postcrypt has hosted many up-and-coming folk musicians, including Jeff Buckley, Dar Williams, Shawn Colvin, David Bromberg, and Ani DiFranco.

Its size is also notable: according to the fire code, it can legally only host 35 people at a time, giving the venue a very intimate feel, and making it possible to have music without any sort of amplification.

Despite popular conceptions, the Postcrypt location was never a "crypt," but rather a storage closet in the basement of the chapel; it takes its name from the Søren Kierkegaard book, Concluding Unscientific Postscript to Philosophical Fragments.

One thing you won't find anywhere else is the Postcrypt Coffeehouse, a musty hideaway tucked into the depths of the St. Paul's basement where singers from the accomplished to the totally disastrous perform Friday and Saturday nights.