Marian Kociniak (11 January 1936 – 17 March 2016) was a film, television, voice and radio actor and comedian. He was best known from portraying Franciszek Dolas, a main character in the 1969 film How I Unleashed World War II. Kociniak also had main and secondary roles in films such as Morning Stars (1979), Danton (1983), Fucha, Bermuda Triangle (1987), Circus is Leaving (1987), Yesterday Goodbye (1993), Sir Thaddeus (1999), Kalipso (2000), and The Last Action (2009), as well as in television series such as Janosik (1974), Jan Serce (1981), Sukces (1995), and The Deep End (2013).

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