Mikhail Sergeyevich Kazelin (Russian: Михаил Сергеевич Казелин, born 19 September 1996) is a Russian speed skater.

In November 2015 Kazelin won the 1000m event at the Junior World Cup in Groningen.

[1] That season he won the overall 500m competition.

[2] He took part in the first competition weekend of the 2018–19 ISU Speed Skating World Cup where he finished 10th in the 1500m Division B event.

[3] He is the twinbrother of speed skater Elizaveta Kazelina.