| Official Name: | Tammiku |
| Settlement Type: | Village |
| Subdivision Type: | Country |
| Subdivision Name: |  Estonia |
| Subdivision Type1: | County |
| Subdivision Name1: | Lääne-Viru County |
| Subdivision Type2: | Parish |
| Subdivision Name2: | Väike-Maarja Parish |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Tammiku is a village in Väike-Maarja Parish, Lääne-Viru County, in northeastern Estonia.[1] Prior to the 2017 administrative reform of Estonian local governments, the village was part of Rakke Parish.