Mryn rural hromada () is a hromada of Ukraine, located in Nizhyn Raion, Chernihiv Oblast. Its administrative center is the village of Mryn.
It has an area of and a population of 4,062, as of 2020.
It was formed on August 4, 2016, through the merger of Lykhachivska, Mrynska, Ploskivska, Selyshchenska, and Khotynivska village councils of Nizhyn district.
The hromada contains 7 settlements, which are all villages: