Chi Omega (ΧΩ) is a women's fraternity and a member of the National Panhellenic Conference, the umbrella organization of 26 women's fraternities.
Chi Omega has 181 active collegiate chapters and approximately 240 alumnae chapters. Since its founding in 1895, the fraternity has initiated over 355,000 members with more than 28,000 undergraduates added each year, making it the largest women's fraternal organization by membership. Chi Omega's national headquarters are located in Memphis, Tennessee.