Andrzej Stanisław Bogusławski (born 1 December 1931) is a Polish philologist, semanticist, semioticist and philosopher of language of international repute.

Bogusławski's research interests have ranged from lexicography, through grammar, semantics, semiotics to formal logic and the roots of language in philosophy and theology.

He collaborated with Anna Wierzbicka on Natural semantic metalanguage research and is credited by her with reviving the notion of Leibniz's "alphabet of human thought", or Lingua Mentalis.

He has made original contributions to the methodology of semantics and to the theoretical bases of synchronistic morphology, lexicology, lexicography.

This helped to advance understanding of how the fields of internal languages are demarcated and he assisted the development of the empirical study of linguistics.