Makuhari Messe (幕張メッセ) is a Japanese convention center outside Tokyo, located in the Mihama-ku ward of Chiba City, in the northwest corner of Chiba Prefecture. Designed by Fumihiko Maki, it is accessible by Tokyo's commuter rail system. Makuhari is the name of the area, and Messe is a German language word meaning "trade fair".

Mihama Ward is one of the six wards of the city of Chiba in Chiba Prefecture, Japan. As of April 2012, the ward had an estimated population of 149,314 and a population density of 7,060 persons per km2. The total area was 21.16 km2.