Vaughn De Leath (September 26, 1894 – May 28, 1943) was an American singer who achieved fame in the 1920s. She was know as The Original Radio Girl or the First Lady of Radio.

Born Leonore Vonderlieth, she also recorded under the names Betty Brown, Glory Clark, Gertrude Dwyer, Nancy Foster, Gloria Geer, Sadie Green, Mamie Lee, Angelina Marco, and Marion Ross.