Simon Shnapir (born August 20, 1987) is an American former competitive pair skater.

Shnapir was born to Jewish parents, both chemical engineering graduates, in Moscow, Russian SFSR, Soviet Union.

[1] Shnapir graduated from Lincoln-Sudbury Regional High School in 2005, and went on to major in marketing at Emerson College.

[6] Shnapir and Marissa Castelli teamed up in April 2006 and began training together in earnest in June.

[2][7] They trained in Boston, coached by Bobby Martin, Carrie Wall (technical), Mark Mitchell (in-betweens, polishing), and Peter Johansson (throws).

In the 2009–10 season, Castelli was off the ice for a month after a collision with an Italian skater resulting in 15 stitches to her inner thigh.

Castelli/Shnapir won their second national title at the 2014 U.S. Championships and were named in the U.S. team to the 2014 Winter Olympics, held in February in Sochi, Russia.