| Official Name: | Tammiku |
| Settlement Type: | Village |
| Pushpin Map: | Estonia |
| Subdivision Type: | Country |
| Subdivision Name: |  Estonia |
| Subdivision Type1: | County |
| Subdivision Name1: | Jõgeva County |
| Subdivision Type2: | Parish |
| Subdivision Name2: | Põltsamaa Parish |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Tammiku is a village in Põltsamaa Parish, Jõgeva County in Estonia.[1]
Tammiku was mentioned in written records as Thammik in 1582, Tamick in 1628, and Tam̄ikult in 1797. The name (in the genitive case) comes from the common noun tammik 'oak forest', referring to the local vegetation.[2]