Syarhei Ivanavich Kastsyan (; 15 January 1941 – 21 August 2026) was a Belarusian politician. A member of the Communist Party, he served on the Supreme Council and then on the House of Representatives from 1996 to 2001.

In 2006, Kastsyan was banned from entering the territory of the European Union.

Kastsyan died on 21 August 2026, at the age of 85.

References