| Trękusek | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Warmian-Masurian |
| Subdivision Type2: | County |
| Subdivision Name2: | Olsztyn |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Purda |
| Pushpin Map: | Poland |
| Coordinates: | 53.7133°N 20.6314°W |
| Pushpin Label Position: | bottom |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Area Code: | +48 89 |
| Registration Plate: | NOL |
Trękusek is a village in the administrative district of Gmina Purda, within Olsztyn County, Warmian-Masurian Voivodeship, in northern Poland.[1] It is located within the historic region of Warmia.
The village was founded in 1359.
The historic sights of Trękusek are the Warmian old wayside shrine and the ruins of an early 20th-century manor.