| Official Name: | Allika |
| Settlement Type: | Village |
| Pushpin Map: | Estonia |
| Subdivision Type: | Country |
| Subdivision Name: |  Estonia |
| Subdivision Type1: | County |
| Subdivision Name1: | Hiiu County |
| Subdivision Type2: | Parish |
| Subdivision Name2: | Hiiumaa Parish |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Coordinates: | 58.8419°N 22.7831°W |
Allika is a village in Hiiumaa Parish, Hiiu County in northwestern Estonia.[1]
The village was first mentioned in 1620 (Hallikio by).[2]
In the 1970s, the village was divided into two: western part was named Allika I, and the eastern part Allika II. In 1977, Allika I was merged into the village of Moka, and Allika II into the (former) village of Vaku. In 1997, the pre-1970s situation was restored.[2]