Kurigram Sadar () is an upazila of Kurigram District in Rangpur Division, Bangladesh.
Kurigram Sadar is located at . It has a total area 276.43 km<sup>2</sup>.
According to the 2022 Bangladeshi census, Kurigram Sadar Upazila had 90,115 households and a population of 361,408. 9.98% of the population were under 5 years of age. Kurigram Sadar had a literacy rate (age 7 and over) of 69.87%: 72.85% for males and 67.00% for females, and a sex ratio of 97.29 males for every 100 females. 131,901 (36.50%) lived in urban areas.
According to the 2011 Census of Bangladesh, Kurigram Sadar Upazila had 72,592 households and a population of 312,408. 74,572 (23.87%) were under 10 years of age. Kurigram Sadar had a literacy rate (age 7 and over) of 46.14%, compared to the national average of 51.8%, and a sex ratio of 1022 females per 1000 males. 80,810 (25.87%) lived in urban areas.
As of the 1991 Census of Bangladesh, Kurigram Sadar has a population of 217,311. Males constitute are 51.01% of the population, and females 48.99%. This Upazila's eighteen up population is 106,925. Kurigram Sadar has an average literacy rate of 26.2% (7+ years), and the national average of 32.4% literate.
Kurigram Sadar Upazila is divided into Kurigram Municipality and eight union parishads.
The union parishads are subdivided into 78 mauzas and 266 villages.
Kurigram Municipality is subdivided into 9 wards and 106 mahallas.