Silas Seth Weeks (September 8, 1868 – December 1953) was an American composer who played mandolin, violin, banjo and guitar. Although he played many instruments he concentrated professionally on the mandolin. He is considered to be the first African American to play mandolin during its golden period and was considered instrumental in bringing the mandolin to the prominent national standing that it had in the early 1900s. He was the first American known to write a mandolin concerto (in 1900) and led a mandolin and guitar orchestra in Tacoma, Washington.