Krien may refer to:
People Anna Krien, Australian journalist and author (born 1975), German actress Ferdinand Krien, German diplomat (1873–1935), German cinematographer Werner Krien (1912–1975), German cinematographer
Places Krien, Mecklenburg-Vorpommern, Germany Krien, German name of Krzynia, Poland Krien, Atzesberg, Austria Krien, Putzleinsdorf, Austria Krien, Rohrbach-Berg, Austria