Trostianets Raion (Ukrainian: Тростянецький район) was a raion in Sumy Oblast in Central Ukraine.

The administrative center of the raion was the town of Trostianets.

[1] The raion was abolished on 18 July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Sumy Oblast to five.

[4] In March 1930 the Raion was the centre of a quickly defeated pro-Ukrainian anti-Soviet Union revolt.

This article about a location in Sumy Oblast is a stub.