Okulovsky District is an administrative and municipal district (raion), one of the twenty-one in Novgorod Oblast, Russia. It is located in the center of the oblast and borders with Lyubytinsky District in the northeast, Borovichsky District in the east, Bologovsky District of Tver Oblast in the southeast, Valdaysky District in the southwest, Krestetsky District in the west, and with Malovishersky District in the northwest. The area of the district is 2,500 square kilometers (970 sq mi). Its administrative center is the town of Okulovka. Population: 25,808 (2010 Russian census); 31,153 ; 36,852 (1989 Soviet census). The population of Okulovka accounts for 48.3% of the district's total population.

Nicholai Nikolaevich Miklouho-Maclay was a Russian explorer of Ukrainian origin. He worked as an ethnologist, anthropologist and biologist who became famous as one of the earliest scientists to settle among and study indigenous people of New Guinea "who had never seen a European".