title: Bym (river)
text: # Bym (river)
  
  The Bym (Russian: Бым) is a river in Perm Krai, Russia, a left tributary of the Iren, which in turn is a tributary of the Sylva. The river is 56 kilometres (35 mi) long with a drainage basin of 327 square kilometres (126 sq mi). Main tributaries: Bymok (right).
  
  