This article is devoted to the study of the life path, professional activity, and state-building contribution of Anton Dmytrovych Buteyko — an outstanding Ukrainian diplomat, politician, and public figure who played a key role in shaping the foreign policy system of independent Ukraine. The paper provides a comprehensive analysis of A.D. Buteyko’s personal development, his educational trajectory from a student at the International Faculty of Taras Shevchenko Kyiv State University to a highly professional diplomat.