The purpose of the article is to present, analyze and evaluate the concept of freedom in Friedrich August von Hayek (1899–1992). First, I point out the main determinants of his understanding of freedom (with the emphasis on the fact that freedom means the absence of arbitral coercion towards the individual by other people), then I present Hayek’s arguments for his definition of freedom, as well as for his conviction that freedom is what should be absolutely valued and what is worth defending. An attempt is made to evaluate those ideas in terms of their relevance and convincingness – both in relation to Hayek’s analyses of notion of freedom as well as his normative statements.