Oberon Dam or Fish River Dam is a major ungated concrete slab and buttress with earth embankment dam comprising a concrete ski jump chute spillway and fuse plug across the Fish River upstream of Oberon in the Central Tablelands region of New South Wales, Australia.

Commenced in 1943, completed over two stages in 1959, and upgraded in 1996, the Oberon Dam is a major dam on the Fish River (formerly, Fish River Creek), located approximately 3 kilometres (1.9 mi) upstream, south-east of Oberon.

The original intent of the works was to supply water to the National Oil Proprietary Ltd's refinery at Glen Davis in the western coal fields, factories at Lithgow, and supporting populations.

The concrete ski jump chute and fuse plug spillways are capable of discharging 280 cubic metres per second (9,900 cu ft/s).

[1] The reservoir is regularly stocked with brown and rainbow trout and can be fished throughout the year from the water's edge.