The National Panhellenic Conference (NPC), founded in 1902, is an umbrella organization for 26 (inter)national women's sororities.

Each member group is autonomous as a social, Greek-letter society of college women and alumnae. Members are represented on over 620 college and university campuses in the United States and Canada and in over 4,600 alumnae associations, making up over 4 million sorority women.