Rocklands Reservoir, Reservoir and heritage site in Victoria, Australia

Rocklands Reservoir is a large water storage area near Balmoral in western Victoria, with several campgrounds and boat launch points spread along its shoreline. The site holds a Heritage Overlay status and serves both as a water supply source and a recreational area.

Construction of the dam began in 1938, was halted during World War II, resumed in 1950 and finished in 1953. The concrete-faced wall is 24 metres high and 490 metres long, flanked by two 15-metre embankment sections. The reservoir was built to supply the Wimmera-Mallee Domestic and Stock channel system and is the largest storage operated by GWMWater.

Anglers fish Rocklands Reservoir year-round for Murray cod, redfin, trout and carp. In the late 1990s and early 2000s it was one of Victoria's premier carp fishing destinations, with carp over 10 kilograms regularly caught. Powerboating, water skiing and jet skiing are permitted, camping is allowed in designated areas, and duck shooting is permitted during the duck hunting season.

The reservoir lies west of the Grampians and south of the Black Range, reached from the surrounding Wimmera towns. Camping is allowed only in designated areas, and powerboating, water skiing and jet skiing are permitted on the water. Duck shooting is allowed during the duck hunting season.

All entitlement holders, including the environment, can be supplied with water from Rocklands Reservoir, a feature the sources describe as unique to this storage. The reservoir was one of Victoria's premier carp fishing destinations in the late 1990s and early 2000s, when carp over 10 kilograms were regularly caught.