| Official Name: | Matlab Dakshin |
| Native Name: | মতলব দক্ষিণ |
| Settlement Type: | Upazila |
| Coordinates: | 23°N 90°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Type2: | District |
| Subdivision Name1: | Chittagong |
| Subdivision Name2: | Chandpur |
| Leader Title: | MP (Chandpur-2) |
| Leader Name: | Nurul Amin Ruhul |
| Leader Title1: | Upazila Chairman |
| Leader Name1: | B H M Kabir Ahamed |
| Area Total Km2: | 129.32 |
| Population Total: | 226721 |
| Population As Of: | 2022 |
| Population Footnotes: | [1] |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
| Postal Code: | 3640[2] |
| Area Code: | 08426[3] |
| Website: | http://matlabsouth.chandpur.gov.bd/ |
| Timezone: | BST |
| Utc Offset: | +6 |
Matlab Dakshin (Bengali: মতলব দক্ষিণ, romanized: Motlob Dakshin, lit. 'Matlab South') is an upazila of Chandpur District in the division of Chittagong, Bangladesh. The former Matlab Upazila was bifurcated in 2000, creating Matlab Dakshin and Matlab Uttar upazilas.
Matlab is located at 23.35°N 90.7083°W. It has a total land area of 129.32 km2.[4]
According to the 2011 Census of Bangladesh, Matlab Dakshin Upazila had 45,569 households and a population of 210,050. 50,318 (23.96%) were under 10 years of age. Matlab Dakshin had a literacy rate (age 7 and over) of 56.75%, compared to the national average of 51.8%, and a sex ratio of 1149 females per 1000 males. 59,286 (28.22%) lived in urban areas.[5] [6]
Matlab Dakshin Upazila is divided into 2 municipalities and 5 union parishads.
Matlab Municipality is subdivided into 9 wards and 30 mahallas, and Narayanpur Municipality is subdivided into 9 wards and 24 mahallas.[7]