Takeuchi Seihō (竹内 栖鳳; /takeɯᵝtɕiseːhoː/) (December 20, 1864 – August 23, 1942) was a Japanese painter of the Nihonga genre, active from the Meiji through the early Shōwa period. One of the founders of nihonga, his works spanned half a century and he was regarded as master of the prewar Kyoto circle of painters. His real name was Takeuchi Tsunekichi (竹内 恒吉; /takeɯᵝtɕitsɯᵝnekʲitɕi/).