Joseph Tykociński-Tykociner (also known as Joseph T. Tykociner; 5 October 1877, in Włocławek, Congress Poland – 11 June 1969, in Urbana, Illinois, United States) was a Polish engineer and a pioneer of sound-on-film technology. In 1921 he became the first research professor of engineering at the University of Illinois at Urbana-Champaign. Within a year of his arrival at the University, he conducted the first sound-on-film motion picture recordings at a physics demonstration that showed how pictures and sound could be synchronized to produce a "talkie", a motion picture with sound.