Taj ol Din Mahalleh (, also Romanized as TÃÂj ol Dën Maḩalleh; also known as TÃÂj od Dën) is a village in Rudpey-ye Gharbi Rural District, in the Rudpey District of Sari County, Mazandaran Province, Iran. At the 2016 census, its population was 376, in 137 families. Down from 404 people in 2006.