| Official Name: | Tha Mai |
| Native Name: | ท่าใหม่ |
| Settlement Type: | Tambon |
| Subdivision Type: | Country |
| Subdivision Type2: | Province |
| Subdivision Name2: | Chanthaburi |
| Subdivision Type3: | Amphoe |
| Subdivision Name3: | Tha Mai |
| Population As Of: | 2017 |
| Population Total: | 8,137 |
| Timezone: | TST |
| Utc Offset: | +7 |
| Latns: | N |
| Longew: | E |
| Postal Code Type: | Postal code |
| Blank Name: | TIS 1099 |
Tha Mai (th|ท่าใหม่, pronounced as /th/) is a tambon (subdistrict) of Tha Mai District, in Chanthaburi Province, Thailand. In 2017 it had a total population of 8,137 people.[1]
The tambon has no administrative villages (muban).
The whole area of the subdistrict is covered by the town (Thesaban Mueang) Tha Mai (เทศบาลเมืองท่าใหม่).