| Kotarszyn | |
| Settlement Type: | Village |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Świętokrzyskie |
| Subdivision Type2: | County |
| Subdivision Name2: | Ostrowiec |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Waśniów |
| Coordinates: | 50.9386°N 21.1958°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 250 |
Kotarszyn is a village in the administrative district of Gmina Waśniów, within Ostrowiec County, Świętokrzyskie Voivodeship, in south-central Poland. It lies approximately 5km (03miles) north-west of Waśniów, 150NaN0 west of Ostrowiec Świętokrzyski, and 420NaN0 east of the regional capital Kielce.[1]