Okha (Russian: Оха́) is a town and the administrative center of Okhinsky District of Sakhalin Oblast, Russia.

During this time the town was called Okutan (奥端町, Okutan-chō) or Okuhan (奥哈町, Okuhan-chō) depending on Kanji used.

An oil pipeline and gas main runs from Okha to Komsomolsk-on-Amur on the Russian mainland.

A number of oil wells exist in close proximity to the town, mainly controlled by the company Rosneft.

In 1920, during the Siberian Intervention, Japan occupied the northern part of Sakhalin Island, returning it to the Soviet Union in 1925 after the Treaty of Beijing was signed on January 20, 1925.