K129

K129 or K-129 may refer to:

• K-129 (1947–1966 Kansas highway), a former state highway in Kansas
• K-129 (1980–1997 Kansas highway), a former state highway in Kansas
• Soviet submarine K-129 (1960), a Soviet Union submarine
• , a nuclear-powered ballistic missile submarine.
• Symphony No. 17 (Mozart) in G major by Mozart, K.129