Sigma Delta Chi (ΣΔΧ) was an American regional sorority operating in Missouri from 1902 until 1915.
In April 1902, four female students formed a "friendship club" at the First District Normal School (now Northeast Missouri State University).
In the fall of 1902, the Beta chapter at Warrensburg Teachers College (how the University of Central Missouri) was chartered.
Two years later, the Gamma chapter was chartered at Forest Park Academy and Delta at the Fifth District Normal School (now Northwest Missouri State University).
Northwest Missouri State University records indicated that its final date as March 18, 1914.