Trị An Reservoir
Trị An Lake
Hồ Trị An (Vietnamese)
A bridge across the reservoir in Vĩnh Cửu district
Trị An Reservoir
Location	Đồng Nai province
Coordinates	11°11′09″N 107°09′04″E / 11.18583°N 107.15111°E / 11.18583; 107.15111
Type	Reservoir
River sources	Đồng Nai River, La Ngà River
Basin countries	Vietnam
Built	1984 (1984)
First flooded	1987 (1987)
Surface area	323 square kilometres (125 sq mi)
Water volume	~ 2.8 billion cubic metres (99×10^9 cu ft)

Trị An Reservoir, also known as Trị An Lake (Vietnamese: Hồ Trị An), is an artificial lake located on the Dong Nai River, with the territory of Vĩnh Cửu, Định Quán, Thống Nhất and Trảng Bom districts, all in Đồng Nai province.^[1] It stores, then supplies water for Trị An Dam.^[2]

It has an area of 323 square kilometres (80,000 acres) and a capacity of 2.7 billion cubic metres (9.5×10¹⁰ cu ft). In the north of the lake is Cát Tiên National Park. There are 76 small islands in the lake, some of which are inhabited.^[3] Today, it is also a picnic spot in Đồng Nai province.^[4]

• Media related to Tri An Reservoir at Wikimedia Commons