Mikhail Nikolayevich Elgin is a Russian professional tennis player.

Alexander Mikhailovich Kudryavtsev is a retired Russian professional tennis player who has played professionally since 2003. He made his breakthrough in 2008, playing in his first top-level international tournaments on the ATP tour, having spent time playing at the ATP Challenger Tour and Futures events. He reached his career-high singles ranking of 117 on 2 February 2015 and career-high doubles ranking of 70 on 7 November 2011.