Włodzimierz Kotoński (Warsaw, Poland, 23 August 1925 - 4 September 2014) was a composer, a teacher and a music theorist. He studied composition with Rytel at the Warsaw Academy of Music (1945–51) and took lessons with Szeligowski in Poznań. He attended the Darmstadt summer courses 1957-61, and was the first composer to make use of the Experimental studio of Polish radio newly founded in 1957. Later on, he was appointed lecturer in composition at the Warsaw Academy in 1967, where he also directed the electronic music studio.
In the 1960s his music was one of the most radical in Poland. He was also a pioneer of tape pieces, of live electronic sound-distribution and in the development of synthesized and computer music. His pupils have included Grudzień, Krupowicz, Kulenty, Szymański, Wielecki and Mykietyn.