Irina Aleksandrovna Meleshina-Simagina (Russian: Ирина Александровна Симагина) (born 25 May 1982, in Ryazan) is a Russian long jumper. Simagina won the silver medal at the 2004 Summer Olympics. She was then more or less away from the international scene the next two seasons. She did not start at the 2005 World Championships, despite having entered the competition, and gave birth to a daughter in the summer of 2006. She returned to competition in early 2007. Her personal best jump is 7.27 metres, achieved in July 2004 in Tula.