Richard Plotz (commonly known as Dick Plotz) (August 15, 1948 – March 2, 2024) was the founder of the Tolkien Society of America, which in 1972 was merged with the Mythopoeic Society. Plotz is known for his interview with J. R. R. Tolkien in the late 1960s under the auspices of Seventeen Magazine, and for a 1967 letter from Tolkien delineating the declension of the noun in late Quenya (the so-called "Plotz Declension"). Plotz attended Harvard University as an undergraduate.