Nathaniel Dowd Williams (October 19, 1907 – October 27, 1983), known as Nat D. Williams or simply Nat D., was an American high school teacher, disc jockey on Black Appeal radio, journalist and editor. He was born on Beale Street in Memphis, Tennessee. Known for his ‘’jive’’ patter on the air, Williams had 10% of African-Americans in the U.S. listening to his program and heralded the changing radio style which helped to create "Black appeal radio", which it turn led to the urban contemporary listening format of Black radio in the 1960s and '70s.