Viktor Andreyevich Shershunov (Russian: Виктор Андреевич Шершунов; 16 November 1950 – 20 September 2007) was the governor of Kostroma Oblast, Russia, from 1997 to 2007.

He previously worked at the Prosecutor's Office of Kostroma Oblast.

Shershunov was elected governor in 1996 and re-elected in 2000 with a large majority.

In 2005, he was reappointed by Vladimir Putin after direct elections for governors was replaced with presidential appointment.

On 20 September 2007, Viktor Shershunov died in a car crash in Moscow Oblast at the 76th kilometer of the Yaroslavl highway.