Mihai Grasu (born 21 April 1987) is a retired Romanian shot putter and discus thrower.
In the shot put he competed at the 2004 World Junior Championships and the 2006 World Junior Championships without reaching the final.
His personal best throw was 62.20 metres, achieved in May 2011 in Bucuresti.
He had 18.69 metres in the shot put, achieved in July 2014 in Pitesti.
This biographical article relating to Romanian athletics is a stub.