Raninagar (Bengali: রাণীনগর) is an Upazila of Naogaon District in the Division of Rajshahi, Bangladesh.

Raninagar is located at 24°44′00″N 88°58′30″E / 24.7333°N 88.9750°E / 24.7333; 88.9750. It has 45,637 households and total area 258.32 km.

The upazila is bounded by Naogaon Sadar Upazila and Adamdighi Upazila of Bogra District on the north, Atrai upazila on the south, Nandigram Upazila of Bogra District and Singra Upazila of Natore district on the east and Manda upazila on the west.

According to the 2011 Census of Bangladesh, Raninagar Upazila had 45,637 households and a population of 184,778. 37,183 (20.12%) were under 10 years of age. Raninagar had a literacy rate (age 7 and over) of 46.04%, compared to the national average of 51.8%, and a sex ratio of 1017 females per 1000 males. 6,808 (3.68%) lived in urban areas.

As of the 1991 Bangladesh census, Raninagar has a population of 158244. Males constituted 50.94% of the population, and females 49.06%. This Upazila's eighteen up population was 79,136. Raninagar had an average literacy rate of 28.4% (7+ years), and the national average of 32.4% literate.

Raninagar, primarily formed as a Thana in 1916, was turned into an upazila in 1983.

The upazila is divided into eight union parishads: Bargachha, Ekdala, Gona, Kaligram, Kashimpur, Mirat, Parail, and Raninagar. The union parishads are subdivided into 188 mauzas and 174 villages.

• Upazilas of Bangladesh
• Districts of Bangladesh
• Divisions of Bangladesh

• M Mukhlesur Rahman (2012). "Raninagar Upazila". In Sirajul Islam and Ahmed A. Jamal (ed.). Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh.