Harold Albert Loeb (October 18, 1891 – January 20, 1974) was an American writer, notable as an important American figure in the arts among expatriates in Paris in the 1920s. In 1921 he was the founding editor of Broom, an international literary and art magazine, which was first published in New York City before he moved the venture to Europe. Loeb published two novels while living in Paris in the 1920s, and additional works after returning to New York in 1929.