| Official Name: | Nykil |
| Pushpin Map: | Sweden Östergötland#Sweden |
| Subdivision Type: | Country |
| Subdivision Name: | Sweden |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Linköping Municipality |
| Subdivision Type2: | County |
| Subdivision Name2: | Östergötland County |
| Subdivision Type1: | Province |
| Subdivision Name1: | Östergötland |
| Area Footnotes: | [1] |
| Area Total Km2: | 0.37 |
| Population As Of: | 31 December 2010 |
| Population Total: | 321 |
| Population Density Km2: | 873 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 58.2833°N 42°W |
Nykil is a locality situated in Linköping Municipality, Östergötland County, Sweden with 321 inhabitants in 2010.