Qajar Ab-e Olya (Persian: قجراب عليا, also Romanized as Qajar Āb-e ‘Olyā; also known as Qajar Āb) is a village in Kuh Sardeh Rural District, in the Central District of Malayer County, Hamadan Province, Iran. At the 2006 census, its population was 188, in 45 families.