Sergey Leonidovich Katanandov (Russian: ?????´? ?????????? ??????????) was the President of the Republic of Karelia in Russia in 2002–2010.
Katanandov was born in 1955, in the Karelian capital of Petrozavodsk.
Educated in civil engineering and law, Katanandov served as Mayor of Petrozavodsk from 1990 to 1998, and became Chairman of the Government of Karelia in 1998.
From May 2002 till June 30, 2010, he was the Head of the Republic of Karelia.