| Official Name: | Kahaloo |
| Native Name: | কাহালু |
| Settlement Type: | Upazila |
| Coordinates: | 24.8167°N 105°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Name1: | Rajshahi |
| Subdivision Type2: | District |
| Subdivision Name2: | Bogra |
| Area Total Km2: | 240.42 |
| Population Footnotes: | [1] |
| Population Total: | 234585 |
| Population As Of: | 2022 |
| Population Density Km2: | auto |
| Timezone: | BST |
| Utc Offset: | +6 |
| Postal Code Type: | Postal code |
| Postal Code: | 5870[2] |
Kahaloo Upazila (bn|কাহালু উপজেলা) is an upazila of Bogra District in the Division of Rajshahi, Bangladesh. Kahaloo Thana was established in 1928 and was converted into an upazila in 1983.[3] It is named after its administrative center, the town of Kahaloo.
Kahaloo Upazila has a total area of . It is bounded on the west by the Nagar River (across which lies Dhupchanchia Upazila).[4] It borders Shibganj Upazila to the north, Bogra Sadar and Shajahanpur upazilas to the east, Nandigram Upazila to the southwest, and Adamdighi Upazila to the west.[3]
According to the 2011 Census of Bangladesh, Kahaloo Upazila had 58,261 households and a population of 222,376. 43,958 (19.77%) were under 10 years of age. Kahaloo had a literacy rate (age 7 and over) of 52.07%, compared to the national average of 51.8%, and a sex ratio of 1009 females per 1000 males. 13,887 (6.24%) lived in urban areas.[5] [6]
The total number of voters in Kahalu upazila is 1,46,786. Of these, 71,501 are male voters and 85,265 are female voters.[7]
Kahaloo Upazila is divided into Kahaloo Municipality and nine union parishads: Bir Kedar, Durgapur, Jamgaon, Kahaloo, Kalai Majh Para, Malancha, Murail, Narahatta, and Paikar. The union parishads are subdivided into 161 mauzas and 264 villages.
Kahaloo Municipality is subdivided into 9 wards and 19 mahallas.[5]
Railway stations Panchpir Mazar and Kahaloo are on the branch line connecting Santahar and Kaunia . In July 2014 they were served by six or eight intercity and six mail trains a day.[8]
See also: Education in Bangladesh. There are four colleges in the upazila. They include Azizul Haque Memorial Degree College, Dargahat Degree College, and Kahaloo Adarsha Women's Degree College. Kahaloo Degree College is the only honors level college in the upazila.
The madrasa education system here includes five fazil madrasas.[9]