Ljubomir Klerić (29 June 1844 – 21 January 1910) was a Serbian mining engineer, mathematician, inventor, professor of mechanics and Minister of education and the economy.

In 1862, he finished First men's Belgrade Secondary School and enrolled at the Faculty of Engineering of Velika Škola or the Grandes écoles, where he completed two years of study.

[2] After graduation in 1870, Klerić returned to Belgrade with a broad knowledge of mining, engineering, mineralogy, mechanics and mathematics.

[2] In 1892, Ljubomir Klerić patented several appliances in mining (scale, deep well drill, rock breaker ...).

He created the following mathematical tools: He served as minister of education and ecclesiastical affairs for a few months between the autumn of 1894 and June 1895.

As minister of the national economy between December 1896 and October 1897, he introduced laws designed to increase industrialization, agricultural production, quality control and the general level of technical knowledge among the people of Serbia.