| Riley Lake | |
| Settlement Type: | Dispersed rural community |
| Pushpin Map: | Canada Southern Ontario |
| Pushpin Map Caption: | Location in Southern Ontario |
| Coordinates: | 44.8397°N -79.2036°W |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ontario |
| Subdivision Type2: | District Municipality |
| Subdivision Name2: | Muskoka |
| Subdivision Type3: | Town |
| Subdivision Name3: | Gravenhurst |
| Unit Pref: | Metric |
| Elevation Footnotes: | [2] |
| Elevation M: | 256 |
| Population Density Km2: | auto |
| Timezone1: | Eastern Time Zone |
| Utc Offset1: | -5 |
| Timezone1 Dst: | Eastern Time Zone |
| Utc Offset1 Dst: | -4 |
| Postal Code Type: | Postal code |
| Postal Code: | P1P 1R3 |
| Area Codes: | 705, 249 |
Riley Lake is a Dispersed rural community and unincorporated place in geographic Ryde Township[3] in the town of Gravenhurst, District Municipality of Muskoka, in Central Ontario, Canada.[4] [5] [6] The community lies on the northwest shore of the eponymous Riley Lake, the source of Riley Creek.