| Sahiyara | |
| Settlement Type: | village |
| Pushpin Map: | India Bihar#India |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Bihar, India |
| Coordinates: | 26.43°N 85.29°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Bihar |
| Subdivision Type2: | District |
| Subdivision Name2: | Sitamarhi |
| Parts Type: | Talukas |
| Parts: | Bathnaha, Bihar |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Bajjika, Maithili, Hindi |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 843332 |
Sahiyara is one of the villages in Bathnaha Tehsil in Sitamarhi district in the state of Bihar. Sahiyara is 18.1 km from Sitamarhi, the largest nearby town which is also the district capital. It is 132 km from Patna, the state capital.It is just 10 km from international India–Nepal border.
Sahiyara's Pin Code is 843332. Other villages under the territory of this Post Office (843332) are Sahiyara, Bahera, Majorganj, Bherrahiya, Bagaha.