Hoseynabad-e Beglar Beygi (, also Romanized as ḨoseynÃÂbÃÂd-e Beglar Beygë and ḨoseynÃÂbÃÂd-e Bëglarbeygë) is a village in Dashtabi-ye Gharbi Rural District, Dashtabi District, Buin Zahra County, Qazvin Province, Iran. At the 2006 census, its population was 86, in 23 families.