| Tilathi Koiladi | |
| Native Name: | तिलाठी कोईलाडी |
| Settlement Type: | Rural Municipality (Gaunpalika) |
| Mapsize: | 300px |
| Pushpin Map: | Nepal Madhesh Province#Nepal |
| Pushpin Label Position: | left |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Madhesh Province |
| Coordinates: | 26.46°N 86.75°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Nepal |
| Subdivision Type1: | Zone |
| Subdivision Type2: | District |
| Subdivision Name1: | Sagarmatha Zone |
| Subdivision Name2: | Saptari District |
| Established Date: | 2073 |
| Leader Title: | Chairperson |
| Leader Name: | Arun Kumar Mandal (NC) |
| Leader Title1: | Deputy chairperson |
| Leader Name1: | Phul Kumari Sah (NC) |
| Population Total: | 32389 |
| Population As Of: | 2017 |
| Population Footnotes: | [1] |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Postal Code Type: | Postal code |
| Postal Code: | 56400 |
| Area Code: | 031 |
| Website: | http://www.tilathikoiladimun.gov.np/ |
| Timezone: | Nepal Time |
| Utc Offset: | +5:45 |
Tilathi Koiladi is a rural municipality in Saptari District in the Sagarmatha Zone of south-eastern Nepal. At the time of the 2017 Nepal census it had a population of 32,389 people living in 9845 individual households.[2]