The SUMA500 is a high-speed magnetic levitation (maglev) train developed in South Korea as part of a national effort to advance domestic maglev technology. Created by the Korea Institute of Machinery and Materials (KIMM), the SUMA500 is a prototype designed for speeds up to 500 km/h (311 mph), positioning it as a contender in the field of high-speed, next-generation transportation.

SUMA stands for Smart Urban Maglev Advanced, and the “500” indicates its target maximum speed. Unlike Korea's lower-speed urban maglev systems, the SUMA500 is a high-speed research platform aimed at long-distance intercity travel. It uses electromagnetic suspension (EMS) technology, in which the train levitates just a few millimeters above the guideway using onboard electromagnets. This eliminates friction and enables smoother, quieter, and more energy-efficient operation.

The SUMA500 was tested on a dedicated track in South Korea, where researchers evaluated its performance, safety, and efficiency. Its design features an aerodynamic body, lightweight construction, and linear motor propulsion.

Development has ceased (as of 2025), and the maglev currently remains stationary in Daejeon. Although it never entered commercial service, the SUMA500 remains an important milestone in South Korea’s pursuit of high-speed maglev innovation, showcasing the country’s technological capabilities in advanced high speed ground transport.