Johann Strauss I (March 14, 1804 – September 25, 1849; Johann Baptist Strauß, Johann Strauss (Vater); also Johann Baptist Strauss, Johann Strauss, Sr., the Elder, the Father), is an Austrian Romantic composer famous for his waltzes, and for popularizing them alongside Joseph Lanner, thereby setting the foundations for his sons to carry on his musical dynasty.

His most famous piece is probably the Radetzky March (named after Joseph Radetzky von Radetz), while his most famous waltz is probably the Lorelei Rheinklänge, Op.

154.