| Masamba | |
| Settlement Type: | District and town |
| Pushpin Map: | Indonesia Sulawesi |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Sulawesi |
| Pushpin Map1: | Indonesia |
| Pushpin Label Position1: | bottom |
| Pushpin Map Caption1: | Location of the town in Indonesia |
| Subdivision Type: | Country |
| Subdivision Name: |  Indonesia |
| Subdivision Type1: | Province |
| Subdivision Name1: | South Sulawesi |
| Subdivision Type2: | Regency |
| Subdivision Name2: | North Luwu Regency |
| Area Total Km2: | 1068.85 |
| Population As Of: | mid 2023 estimate |
| Population Note: | [1] |
| Population Total: | 39266 |
| Population Density Km2: | auto |
| Timezone: | WITA |
| Utc Offset: | +8 |
| Coordinates: | -2.5531°N 120.3275°W |
| Postal Code Type: | Postal code |
| Postal Code: | 92912 ‒ 92961 |
| Area Code: | 0473 |
Masamba is a small river town and district (kecamatan) in the North Luwu Regency of South Sulawesi Province of Indonesia which serves as the seat of the regency. The town lies on the Patikala River. It is served by Andi Jemma Airport. The district covers an area of 1,068.85 km2 and had a population of 38,024 at the 2020 Census;[2] the official estimate as at mid 2023 was 39,266 (comprising 19,481 males and 19,785 females).[3] Much of the land in the region is swampy coastal plains with mangroves found in its shallow waters.[4]
A population of Bugis who are known to be Muslims come from Masamba.[5] A number of these Islamic Bugis moved out of the village into Rompu in the 1940s and into the lowlands of the region into Tabalu and Saatu in the 1950s and 1960s.[6] Rattan trading and making is said to be important to the local economy.[7] Coconuts are also grown near the coast in this region of Sulawesi.
There are 19 villages in Masamba District, of which 4 are classed as urban kelurahan and 15 are classed as rural desa. These are listed below (with their populations as at mid 2022).[8]
Masamba has a tropical rainforest climate (Af) with moderate rainfall in September and October and heavy to very heavy rainfall in the remaining months.