Vanderbilt has 10 national sororities:
Alpha Chi Omega
Alpha Delta Pi
Alpha Omicron Pi
Chi Omega
Delta Delta Delta
Delta Gamma
Kappa Alpha Theta
Kappa Delta
Kappa Kappa Gamma
Pi Beta Phi
and 15 national fraternities:
Alpha Epsilon Pi
Alpha Tau Omega
Beta Theta Pi
Delta Kappa Epsilon
Kappa Alpha Order
Kappa Sigma
Lambda Chi Alpha
Phi Delta Theta
Phi Kappa Psi
Phi Kappa Sigma
Pi Kappa Alpha
Sigma Alpha Epsilon
Sigma Chi
Sigma Nu
Zeta Beta Tau
You can check out greek life at Vandy here:
http://www.vanderbilt.edu/greek_life/