Ludwig Mies van der Rohe (March 27, 1886 – August 17, 1969) was a German-American architect. He was commonly referred to as Mies, his surname. Along with Alvar Aalto, Le Corbusier, Walter Gropius and Frank Lloyd Wright, he is regarded as one of the pioneers of modernist architecture.

Mies was the last director of the Bauhaus, a seminal school in modern architecture. After Nazism's rise to power, with its strong opposition to modernism (leading to the closing of the Bauhaus itself), Mies emigrated to the United States. He accepted the position to head the architecture school at the Armour Institute of Technology (later the Illinois Institute of Technology), in Chicago.

One of the benefits of taking this position was that he would be commissioned to design the new buildings and master plan for the campus. All his buildings still stand there, including Alumni Hall, the Chapel, and his masterpiece the S.R. Crown Hall, built as the home of IIT's School of Architecture. Crown Hall is widely regarded as Mies' finest work, the definition of Miesian architecture.

Over the last twenty years of his life, Mies developed and built his vision of a monumental "skin and bones" architecture that reflected his goal to provide the individual a place to fulfill himself in the modern era. Mies sought to create free and open spaces, enclosed within a structural order with minimal presence.

Mies van der Rohe died on August 17, 1969 from esophageal cancer caused by his smoking habit.

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