The Kos Manor (Slovene: Kosova graščina) is a 16th-century manor house located in the Murova neighborhood of the town of Jesenice, Slovenia, at the street address of Cesta maršala Tita 64. It is one of four so-called "ironworks castles" built in the area during the 16th and early 17th centuries by owners of local iron-mining and -processing facilities, in what were then the clustered settlements of Plavž, Sava, Murova and Javornik, amalgamated into the town of Jesenice in 1929. The Bucellini-Ruard Manor in Sava is another survivor of the original four; the Plavž and Javornik manors have been torn down.