Coordinates: 22°10′58″N 113°32′06″E / 22.18287°N 113.53512°E
Sai Van Lake (Portuguese: Lago Sai Van; simplified Chinese: 西湾湖; traditional Chinese: 西灣湖; pinyin: xīwānhú) is a man-made lake in Sé, Macau, China. It is one of two man made lakes in Macau. It is located at the southern tip of Macau Peninsula.
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.