Chi Delta Rho (ΧΔΡ), was an all men's Social Fraternity based in the State of Wisconsin.
In 1934, the men of several local Fraternities in the Wisconsin State College system joined ranks and formed a statewide Fraternal organization, calling themselves The Chi Delta Rho State Fraternity. The existence of this State organization was short-lived due mainly to the crisis of World War II, which drastically reduced the male collegiate population.