Rud-e Hasan-e Olya (, also Romanized as Rūd-e Ḩasan-e ‘Olyā and Rūd Ḩasan-e ‘Olyā; also known as Kaleh Mar Olya, Kalleh Mār, Kallehmār-e Bālā, and Kalleh Mār-e ‘Olyā) is a village in Shaban Rural District, in the Central District of Nahavand County, Hamadan Province, Iran. At the 2006 census, its population was 389, in 104 families.
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