The Norton Museum of Art is an art museum located in West Palm Beach, Florida. Its collection includes over 5,000 works, with a concentration in European, American, and Chinese art as well as in contemporary art and photography.

The museum was founded in 1941 by Ralph Hubbard Norton (1875–1953) and his first wife, Elizabeth Calhoun Norton (1881–1947).

Norton, the former head of the Chicago-based Acme Steel Co., moved to West Palm Beach upon retirement and decided to share his sizable collection of paintings and sculpture. The late Art Deco/Neoclassical building designed by Marion Sims Wyeth opened its doors to the public on February 8, 1941. Its mission statement is "to preserve for the future the beautiful things of the past."

The museum underwent a significant expansion when the 45,000-square-foot (4,200 m²) Gail and Melvin Nessel Wing was built and increased the size of the museum to 122,500 square feet (11,380 m²). Constructed over two years, it was opened to the public in 2003. The expansion created more space to display art in both the new and existing areas, increasing the Norton's gallery space by 75 percent, allowing more opportunities for the museum's permanent collection. The wing includes 14 new galleries, an enclosed courtyard to accommodate a variety of educational and social events, a glass ceiling installation commissioned from Dale Chihuly, a cantilevered spiral staircase, and three-story atrium designed to evoke the museum's art. The new wing was designed by Chad Floyd of the Connecticut-based Centerbrook Architects.