Mircea Costache II (2 May 1940 – 16 February 2016) was a Romanian handball player and coach who played as a pivot for Dinamo București and for the national team. He scored the winning goal in the 1961 World Championship final. After retiring he became a coach in his native Romania and abroad in Algeria and Portugal. Costache led the national team of Algeria to a World Cup for the first time in 1974. Between 1988 and 1995 he was named coach of both the Portugal senior national team and the Portuguese youth sides, with whom he won the European Youth Handball Championship in 1992.