The Inya (Russian: Иня́) is a river in Kemerovo and Novosibirsk Oblasts of Russia. It is a right tributary of the Ob. It is 663 kilometres long, with a drainage basin of 17,600 square kilometres.
By the Inya lie the towns of Leninsk-Kuznetsky and Toguchin. The river flows through a rather densely populated area, and is crossed by several railway lines.
