| Official Name: | Ban Thi |
| Native Name: | บ้านธิ |
| Settlement Type: | Subdistrict |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type2: | Province |
| Subdivision Name2: | Lamphun |
| Subdivision Type3: | District |
| Subdivision Name3: | Ban Thi |
| Population As Of: | 2005 |
| Population Total: | 6234 |
| Timezone: | ICT |
| Utc Offset: | +7 |
Ban Thi (Thai: บ้านธิ, in Thai pronounced as /bâːn tʰíʔ/) is a tambon in Ban Thi District, Lamphun Province, northern Thailand. It lies about 20 km northeast of the town of Lamphun.
Ban Thi was settled largely by Tai Lue people who emigrated from Xishuangbanna in Yunnan Province in the early-Rattanakosin era. Tai Lue women are known for their woven fabrics, a staple of the community economy.[1]