Piilsi
| Piilsi | |
|---|---|
| Village | |
| Country |
 Estonia |
| County | Ida-Viru County |
| Parish | Lohusuu Parish |
| Time zone | EET (UTC+2) |
| • Summer (DST) | EEST (UTC+3) |
Piilsi is a village in Lohusuu Parish, Ida-Viru County in northeastern Estonia.
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Coordinates: 58°55′N 26°56′E / 58.917°N 26.933°E