Barik Rud-e Jonubi Rural District

Barik Rud-e Jonubi Rural District is in the Central District of Fereydunkenar County, Mazandaran province, Iran. Its capital is the village of Bi Namad.

After the National Census of 2006, Fereydunkenar District was separated from Babolsar County in the establishment of Fereydunkenar County, which was divided into two districts of two rural districts each, with Fereydunkenar as its capital and only city.

At the census of 2011, there were 4,708 inhabitants in 1,393 households. At the most recent census of 2016, the population of the rural district was 4,558 in 1,549 households. The most populous of its nine villages was Bozorg Bisheh-ye Mahalleh, with 1,075 people.