| Wierzyca | |
|---|---|
 Wierzyca in Stara Kiszewa | |
 | |
| Location | |
| Country |  Poland |
| Voivodeship | Pomeranian |
| Physical characteristics | |
| Source | Lake Piotrowskie |
| • location | northern lakeshore, east of Piotrowo, Kartuzy County |
| • coordinates | 54°11′25″N 18°09′11″E / 54.19028°N 18.15306°E / 54.19028; 18.15306 |
| Mouth | Vistula |
• location | Gniew, Tczew County |
• coordinates | 53°49′55″N 18°50′10″E / 53.83194°N 18.83611°E / 53.83194; 18.83611 |
| Length | 151.4 km (94.1 mi) |
Basin size | 1,603 km2 (619 mi2) |
| Discharge | |
| • average | 8.94 m3/s (316 cu ft/s) near Brody Pomorskie, Tczew County |
| Basin features | |
| Progression | Vistula→ Baltic Sea |
| Tributaries | |
| • left | Mała Wierzyca Wietcisa |
| • right | Węgiermuca Piesienica |
The Wierzyca is a river of Poland, and a tributary of the Vistula, which it joins at Gniew. The Wierzyca's own tributaries include the Mała Wierzyca.