Iaroslav Mușinschi (born 8 August 1976) is a Moldovan long-distance runner who competes in marathon races.

Born in Chișinău and raised in Ocnița, he originally specialized in the 3000 metres steeplechase.

He ran a personal best time of 2:11:43 hours in October 2008 at the Istanbul Marathon and improved further to record a time of 2:10:15 hours at the 2009 Ljubljana Marathon, where he was edged into second place in the final stretch by Kenya's William Biama.

[2] He performed poorly at the Lake Biwa Marathon in March 2011 as he finished two minutes behind the top 15 athletes.

His best run of the year (2:12:07) came at the Gyeongju International Marathon, where he finished in fourth place.