| Sai Van Lake | |
| Location: | Sé, Macau Peninsula, Macau |
| Coordinates: | 22.1829°N 113.5351°W |
| Type: | man-made lake |
| Pushpin Map: | Macau |
| Pushpin Map Alt: | Location of the lake in Macau |
Sai Van Lake (; Portuguese: Lago Sai Van) is a man-made lake in Sé, Macau. It is one of two man made lakes in Macau. It is located at the southern tip of Macau Peninsula.[1]
The lake was once a bay and closed off by infill. Sai Van means West Bay. Sai Van Lake is separated with Nam Van Lake by Avenida Dr Stanley Ho.