| Arnama | |
| Native Name: | अर्नमा |
| Settlement Type: | Rural Municipality |
| Pushpin Map: | Nepal |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Nepal |
| Pushpin Label Position: | bottom |
| Coordinates: | 26.73°N 86.2°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Nepal |
| Subdivision Type1: | Province |
| Subdivision Type2: | District |
| Subdivision Name1: | Province No. 2 |
| Subdivision Name2: | Siraha District |
| Established Date: | 2073 |
| Leader Title: | Chariperson |
| Leader Name: | Thaku Mahato Koiri |
| Leader Title1: | Vice-Chariperson |
| Leader Name1: | Siyawati Mukhiya |
| Area Total Km2: | 37.76 |
| Population Total: | 22,912 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Postal Code: | 56500 |
| Area Code: | 033 |
| Website: | http://www.anarmamun.gov.np/ |
| Timezone: | Nepal Time |
| Utc Offset: | +5:45 |
Arnama is a rural municipality in Siraha District in Province No. 2 of south-eastern Nepal. At the time of the 2011 Nepal census it had a population of 22,912 people living.[1]