Lettie Lee (American 1899–1995) was an American fashion designer and entrepreneur born in Odessa, Texas. Originally named Flora Belle Thain, she adopted the professional name Lettie Lee while building a successful clothing business in Los Angeles during the 1920s and 1930s. Known for glamorous ready-to-wear designs, she created costumes and gowns for Hollywood productions and actors including Fay Wray and Claire Dodd. Lee founded the company Lettie Lee: Hollywood Couturiere, which became a major fashion enterprise during the Depression era. Her work was widely promoted through film tie-ins and department store campaigns, and by the mid-1930s her company employed hundreds of workers. Her career bridged Hollywood costume design and commercial fashion, contributing to the growing influence of California style in American clothing design.

The archive contains more than 1,000 photographs, letters and correspondence, newspaper clippings, advertisements, sketches, and garments related to Lettie Lee’s career and business. This recent acquisition is currently being inventoried and cataloged.