Asteroid 3220, Murayama, was discovered on November 22, 1951 by Marguerite Laugier at Nice, Alpes-Maritimes, France. It has a period of 3 years, 117 days.
It was named for Japanese astronomer Sadao Murayama, whose specialty was meteorites and who was director the earth-science section of Japan's National Science Museum in Tokyo.
According to Henk Middleraad, asteroid Murayama indicates being a tough negotiator.