Alexeyevka (Russian: Алексеевка) is a rural locality (a selo), one of three settlements, in addition to Sanyyakhtakh, Malykhan and Markha, in Sanyyakhtakhsky Rural Okrug of Olyokminsky District in the Sakha Republic, Russia. It is located 265 kilometers (165 mi) from Olyokminsk, the administrative center of the district and 30 kilometers (19 mi) from Sanyyakhtakh. Its population as of the 2002 Census was 15.