| Morris Lake | |
| Pushpin Map: | Nova Scotia |
| Location: | Halifax Regional Municipality, Nova Scotia |
| Coords: | 44.6553°N -63.5003°W |
| Type: | Eutrophic |
| Inflow: | Russell Lake Bell Lake, Ellenvale Brook, Lamont Lake |
| Outflow: | Cow Bay River |
| Catchment: | 17.495km2 |
| Basin Countries: | Canada |
| Length: | 3.55km (02.21miles) |
| Width: | 0.83km (00.52miles) |
| Area: | 6.4km2 |
| Depth: | 3.7m (12.1feet) |
| Max-Depth: | 13m (43feet) |
| Volume: | 5920000m2 |
| Residence Time: | 4.1 months |
| Shore: | 10.1km (06.3miles) |
| Elevation: | 28m (92feet) |
| Frozen: | 2 months |
| Islands: | 4 |
| Cities: | Dartmouth, Shearwater, Cole Harbour |
Morris Lake is the longest and deepest lake in Dartmouth, Nova Scotia's Halifax Regional Municipality, reaching a maximum depth of, with a typical depth of throughout. It borders the communities of Dartmouth, Shearwater and Cole Harbour.
The lake is bounded by Shearwater and Portland Estates on the west, Cole Harbour on the east and south, and Portland Hills on the north. The shoreline is mostly developed on the northwest end. The Dartmouth Refinery on the shore of Halifax Harbour draws water from the lake for cooling. CFB Shearwater also uses a portion of the lake for helicopter practice manoeuvres and it also maintains a small recreational beach.