Olga (Russian: О́льга) is an urban locality (an urban-type settlement) and the administrative center of Olginsky District of Primorsky Krai, Russia, located on the Olga Bay of the Sea of Japan, 240 kilometers (150 mi) northeast of Nakhodka. Population: 4,026 (2010 Census); 4,453 (2002 Census); 4,802 (1989 Census).