Maryna Novik (; born 19 January 1984) is a female javelin thrower from Belarus. Her personal best throw is 63.25 metres, achieved in August 2009 in Minsk, which is the current national record. She competed at the 2008 Olympic Games but did not qualify for the final. She also competed at the 2012 Summer Olympics in London but again failed to reach the final and finished in 33rd position.