Louise Brigham (January 1, 1875 – March 30, 1956) was an American early-20th-century designer and teacher. She was a pioneering champion of the use of recycled materials in furniture design. A system she invented for building furniture out of packing crates represents one of the earliest to adopt a modular approach to the design of individual units. She also founded one of the earliest ready-to-assemble furniture companies, as well as the Home Thrift Organization (HTA) to teach woodworking to New York City boys. In 1940, she received a medal from the HTA in honor of her quarter century of service to the organization.