Richard John Samuel Stevens (27 March 1757 – 23 September 1837) was an English composer and organist.
In 1810 Stevens married Anna Jeffery, after a long courtship; in 1811 they had a son, Richard George, who entered Gray's Inn in 1834.
Stevens was more careful than many contemporaries in his choice of texts, and devoted special attention to Shakespeare.
Among Stevens’s compositions that did not outlive him were some anthems, including several for Christ's Hospital; three keyboard sonatas; an opera entitled Emma; and a few songs and hymn tunes.
Stevens was a professional member of the Anacreontic Society and it is through his journal accounts that we know that John Stafford Smith wrote their club song "The Anacreontic Song", which, considerably altered and with new words, is now the national anthem of the USA, "The Star-Spangled Banner".