Zarechny (Russian: Заречный) is a rural locality (a selo), the only inhabited locality, and the administrative center of of Olyokminsky District in the Sakha Republic, Russia, located 3 kilometers (1.9 mi) from Olyokminsk, the administrative center of the district. Its population as of the 2010 Census was 620, of whom 327 were male and 293 female, down from 674 as recorded during the 2002 Census.