Luka Celovic also known as Luka Celovic-Trebinjac (Serbian Cyrillic: ???? ???????; 18 October 1854 in Pridvorci, near Trebinje – 15 August 1929 in Belgrade) was a Serbian wholesaler, merchant and rentier.
At the beginning of the 20th century, he was one of the most influential people in Serbia, a patriot and a great benefactor, also a philanthropist of education.
He was the first president of the Belgrade Cooperative.
In 1902, with Milorad Godevac, he founded the Serbian Chetnik Organization in Belgrade.