Ladislav Hejdánek (10 May 1927 – 28 April 2020) was a Czech philosopher and a proponent of Charter 77.

[1] In 1952 he attained a degree in philosophy with his dissertation "Truth and its ontological premises".

From 1956 to 1968 he worked at the Prague Institute of Epidemiology and Microbiology.

Then he took a position at the Institute for Philosophy of the Czechoslovak Academy of Sciences, but was expelled in 1971.

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