Sergey Yuryevich Grankin is a Russian volleyball player, a former member of the Russian national team. 2012 Olympic Champion, two–time European Champion, and a multiple World League medallist. At the professional club level, he plays for Fakel Novy Urengoy.

The men's tournament in volleyball at the 2012 Summer Olympics was the 13th edition of the event at the Summer Olympics, organised by the world's governing body, the FIVB, in conjunction with the IOC. It was held in London, United Kingdom from 29 July to 12 August 2012.