| Lake Dasay | |
| Pushpin Map: | Philippines |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within the Philippines |
| Coordinates: | 7.6619°N 123.2531°W |
| Basin Countries: | Philippines |
Lake Dasay is the second largest mountain lake,[1] after Lake Wood, in the province of Zamboanga del Sur, Philippines. With an elevation of about, it covers a 40ha area surrounded by forestland and is located in the town of San Miguel.