The Social Democratic Harmony Party (abbr. KDM) is a regional political party based in Sabah, Malaysia founded by Peter Anthony and Juil Nuatim. It aims to represent the interests of the Kadazan-Dusun and Murut people. The KDM is currently aligned to the government as a partner, providing confidence and supply to the Gabungan Rakyat Sabah (GRS) state ruling coalition led by Chief Minister Hajiji Noor. The party picked the acryonym KDM, which is a common reference to the native Kadazandusun and Murut communities which the party represents.