RGK may refer to:
RGK Foundation RGK Mobile RGK Center for Philanthropy and Community Service RGK color space, see RG color space Red Wing Regional Airport (FAA Code: RGK) Gorno-Altaysk Airport (IATA Code: RGK) Romano-Germanic Commission (Römisch-Germanische Kommission), a department of the German Archaeological Institute RGK Entertainment Group RGK Records RGK Wheelchairs