| Tan Bela | |
| Native Name: | Persian: تنبلا |
| Native Name Lang: | fa |
| Settlement Type: | Village |
| Pushpin Map: | Iran |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | Mazandaran |
| Subdivision Type2: | County |
| Subdivision Name2: | Simorgh |
| Subdivision Type3: | District |
| Subdivision Name3: | Central |
| Subdivision Type4: | Rural District |
| Subdivision Name4: | Dasht-e Kenar |
| Unit Pref: | Metric |
| Population As Of: | 2016 |
| Population Total: | 472 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Tan Bela (Persian: تنبلا) is a village in Dasht-e Kenar Rural District of the Central District of Simorgh County, Mazandaran province, Iran.
At the time of the 2006 National Census, the village's population wa 406 in 104 households, when it was in Kiakola Rural District of the former Kiakola District of Qaem Shahr County.[2] The following census in 2011 counted 394 people in 115 households.[3] The 2016 census measured the population of the village as 472 people in 168 households, by which time the district had been separated from the county in the establishment of Simorgh County. The rural district was transferred to the new Central District, and Pain Dasteh-ye Rakan Kola was transferred to Dasht-e Kenar Rural District created in the district.[4] It was the most populous village in its rural district.[5]