| Official Name: | Clifton Knolls-Mill Creek, New York |
| Settlement Type: | Census-designated place |
| Pushpin Map: | New York#USA |
| Pushpin Label: | Clifton Knolls- Mill Creek |
| Coordinates: | 42.8469°N -73.8078°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Saratoga |
| Subdivision Type3: | Town |
| Subdivision Name3: | Clifton Park |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 1.64 |
| Area Land Sq Mi: | 1.58 |
| Area Water Sq Mi: | 0.05 |
| Area Total Km2: | 4.24 |
| Area Land Km2: | 4.10 |
| Area Water Km2: | 0.13 |
| Population As Of: | 2020 |
| Population Density Km2: | 742.89 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 280 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 12065 (Clifton Park) |
| Area Code: | 518/838 |
| Blank Name: | FIPS code |
| Blank Info: | 36-16322 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2806958 |
| Population Total: | 3048 |
| Unit Pref: | Imperial |
| Population Density Sq Mi: | 1924.24 |
Clifton Knolls-Mill Creek is a census-designated place (CDP) within the town of Clifton Park, Saratoga County, New York, United States. It was first listed as a CDP prior to the 2020 census.
The community is in southern Saratoga County, southeast of the center of Clifton Park. It is bordered to the north by Clifton Park Center Road, to the east by Moe Road, to the south by Grooms Road, and to the west by Vischer Ferry Road. The CDP of Clifton Gardens borders Clifton Knolls-Mill Creek to the east across Moe Road. The hamlet of Clifton Park Center is at the northwestern corner of the CDP.
Clifton Knolls-Mill Creek is north of Albany, east of Schenectady, and south of Saratoga Springs.