Sylwester Kaliski (December 19, 1925 – September 16, 1978) was a Polish engineer and general. He was a member of the Polish Academy of Sciences (PAN).
Born in Toruń, Kaliski was a specialist in the field of applied physics. He developed the theory of continuous amplification of ultra and hyper-sounds in semiconductive crystals and obtained plasma temperature of tens of millions of kelvins using laser impulse. He died in Warsaw, Poland.