Joseph Brummer was a Hungarian-born art dealer and collector who exhibited both antique artifacts from different cultures, early European art, and the works of modern painters and sculptors in his galleries in Paris and New York. In 1906 he and his two brothers opened their first gallery in Paris, the Brummer Gallery. At the start of World War I, they closed the gallery and moved to New York City. Joseph alone opened his next gallery in 1921 in Manhattan.