| Official Name: | Lake Pleasant, New York |
| Pushpin Map: | New York#USA |
| Pushpin Label: | Lake Pleasant |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Hamilton |
| Subdivision Type3: | Town |
| Subdivision Name3: | Lake Pleasant |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1785 |
| Coordinates: | 43.4708°N -74.4128°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 12108[1] |
| Area Code: | 518 & 838 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 954932 |
Lake Pleasant is a hamlet in the town of Lake Pleasant in Hamilton County, New York, United States. It is the county seat of Hamilton County and includes the Hamilton County Courthouse Complex. The name is derived from a water body named Lake Pleasant near the community.
Historically, Lake Pleasant was also known as "Sageville", after Hezekiah Sage, who built a hotel and attempted to rename the community after himself.
The government offices are primarily located adjacent to New York State Route 8.
Lake Pleasant hamlet is nestled between the southeast corner of Sacandaga Lake and the southwestern corner of Lake Pleasant.