Ο Konstantinos Stoilov (Konstantin Stoilov, 1853-1901) was a Bulgarian politician and jurist who served as Prime Minister of Bulgaria during the crucial period of the formation of the modern Bulgarian state. He was born on 23 September 1853 in Plovdiv and came from a wealthy and patriotic family.

Stoyloff studied at the Robert College in Istanbul and later earned a doctorate in law from the University of Heidelberg in Germany, where he developed strong liberal ideas and a political conscience.

In his political career, he was a founding member of the Bulgarian Conservative Party. During his tenure as Prime Minister, he focused on stabilising institutions, improving international relations and economic development. He played a key role in reconciling political rivals and promoting political stability in the country.

During his studies in Germany, he became a member of a Masonic Lodge, thus beginning his association with the Brotherhood. Since then, he maintained close relations with circles of intellectuals and politicians who were actively involved in Freemasonry. His philosophy and actions reflected the ideals of brotherhood, moral development and social progress. This connection reflects the broader tendency of 19th century European intellectuals and politicians to engage with Masonic ideals that signaled the Enlightenment, moral improvement and social progress.

Stoyloff died on 23 March 1901 in Sofia, leaving an important political legacy in Bulgaria. His contribution to the formation of the Bulgarian nation and his insistence on unity and justice make him one of the most important political figures of his time.