John Rosamond Johnson (August 11, 1873 – November 11, 1954; usually referred to as J. Rosamond Johnson) was an American composer and singer during the Harlem Renaissance. Born in Jacksonville, Florida, much of his music career was in New York City. Johnson is hailed well over a century later as the music composer of the civic anthem "Lift Every Voice and Sing" first performed live by 500 Black American students from racially-segregated Jacksonville, Florida's First Baptist Academy, in the pivotal year of 1900. The song was published by Joseph W. Stern & Co., Manhattan, New York (later the Edward B. Marks Music Company).

J. Rosamond Johnson was the younger brother of poet and activist James Weldon Johnson, who wrote the lyrics for "Lift Every Voice and Sing". The two also worked together in causes related to the NAACP.