Mikhail Sergachyov (Russian: ?????´? ????????; born 25 June 1998) is a Russian professional ice hockey defenceman currently playing for the Tampa Bay Lightning of the National Hockey League (NHL).
He was selected ninth overall by the Montreal Canadiens in the 2016 NHL Entry Draft.
Sergachev was the third player in NHL history to wear sweater #98 in a regular season game, behind both Brian Lawton and Jesse Puljujärvi.