| Leśna Prawa | |
| Name Other: | Правая Лясная |
| Source1 Location: | Dubiny |
| Mouth Location: | Lyasnaya near Kamyanyets |
| Mouth Coordinates: | 52.44°N 23.9087°W |
| Progression: | Lyasnaya→ |
| Subdivision Type1: | Country |
| Length: | 63km (39miles) |
| Basin Size: | 996km2 |
The Leśna Prawa (Belarusian: Правая Лясная - Pravaja Liasnaja or Pravaya Lyasnaya) is a river in north-eastern Poland and western Belarus. At its confluence with the Lyevaya Lyasnaya near Kamyanyets, the Lyasnaya is formed. The Lyasnaya is a right tributary of the Bug River northwest of Brest.
The Leśna Prawa flows through the geographical region of Europe known as the Wysoczyzny Podlasko – Bialoruskie (English: Podlasie and Belarus Plateau) located within the Podlaskie Voivodeship of Poland and the Hrodna Voblast of Belarus. Major part of the river flows through Puszcza Białowieska.
River flows through: Hajnówka, Topiło, Kamyanyets.
Tributaries: Łuch, Chwiszczej, Perebel, Przewłoka, Miedna.