Shostka (Ukrainian: Шостка, IPA: [ˈʃɔstkɐ] ⓘ) is a city in Sumy Oblast, northeastern Ukraine.

Shostka is an important centre of industry: in chemicals (see Svema) and in dairy, the Shostka City Milk Plant was recently acquired by the Bel Group.

Since that time, Shostka was one of the most important gunpowder suppliers in the Russian Empire.

The city is the birthplace of Lightweight Boxer Ivan Redkach.

Shostka is the hometown of the fictional Mousekewitz family in the 1986 animated film An American Tail, the opening of which depicts a Cossack (and cat) raid on the town.