Takehisa Kosugi (小杉 武久 Kosugi Takehisa, born March 14, 1938) is a Japanese composer and violinist associated with the Fluxus movement. Kosugi studied musicology at the Tokyo University of the Arts and graduated in 1962. In 1963 Takehisa Kosugi composed for Fluxus 1 a musical piece called Theatre Music in the form of a rectangle of cardstock that bore the trace of a spiral of moving feet. This was paired with the instructions: "Keep walking intently". Kosugi has received grants from The JDR 3rd Fund in 1966 and 1977. He has also received a DAAD fellowship grant to reside in Berlin in 1981.