Batkachny Island (Russian: Баткачный) is an island in the Caspian Sea. It is located right off the mouths of the Volga in an area where there are many delta islands.

Batkachny Island has a very twisted shape, with many headlands and inlets. It is separated from the coast by a 1 km wide channel. It has a length of almost 30 km and a maximum width of 10 km.

• Sedmoy Island (Ostrov Sed'moy) 45°47′N 48°32′E / 45.783°N 48.533°E / 45.783; 48.533 lies about 7 km to the NE.
• Nizhny Island (Ostrov Nizhny), also known as 'Nizhny Oseredok' 45°43′N 48°30′E / 45.717°N 48.500°E / 45.717; 48.500 lies right east of Batkachny Island's eastern coast, separated from it by a channel that has an average width of 1 km.
• Maly Setnoy Island (Ostrov Malyy Setnoy)45°41′N 48°39′E / 45.683°N 48.650°E / 45.683; 48.650 lies 10 km to the east of Batkachny.
• Morskoy Setnoy Island (Ostrov Morskoy Setnoy) lies 15 km to the east, beyond Malyy Setnoy.
• Other nearby islands include Ostrov Zelenen'ky and Ostrov Zelyony

Administratively Batkachny and its neighboring islands belong to the Astrakhan Oblast of the Russian Federation.

• Caspian Sea Biodiversity Project

45°43′N 48°26′E / 45.717°N 48.433°E / 45.717; 48.433