Thomas Byström, born 28 August (or 2 September) 1772 in Helsinki, died 2 October 1839 in Stockholm, was a military officer, pianist, violinist, music teacher and composer. Elected into the Royal Swedish Academy of Music in 1794. Piano and organ teacher at the educational institution of the academy in 1818−35. Emerged as a composer of violin sonatas, piano pieces, and songs.