Mirko Sandić (Serbian Cyrillic: Мирко Сандић; 9 May 1942 – 24 December 2006) was a Serbian water polo player who led Yugoslav teams to a gold medal at the 1968 Summer Olympics and a silver medal at the 1964 Summer Olympics. He also competed in the 1960 and 1972 Olympics where his teams placed fourth and fifth, respectively. He was given the honour to carry the national flag of Yugoslavia at the opening ceremony of the 1972 Summer Olympics in Munich, becoming the twelfth water polo player to be a flag bearer at the opening and closing ceremonies of the Olympics. Between 1958 and 1974 Sandić played more than 235 matches for the Yugoslav national team contributing 250 goals.