Kosta Trifković (Serbian Cyrillic: Коста Трифковић; born in Novi Sad, Vojvodina, Habsburg Monarchy on October 20, 1843 - died in Novi Sad on February 19, 1875) was a Serbian writer and one of the best comediographers of the time. Trifković wrote lighthearted comedies about city life in Vojvodina which were popular with the public, especially his best play, The Choosy Bride-to-Be (Izbiračica).
Kosta Trifković, born on Danube Street (Dunavskoj ulici) in the city of Novi Sad on the 20th of October 1843, was the only child of Atanasije and Ane Trifković. He went to sea just before finishing high school, but his delicate health proved unequal to the task, and after two years sailing the seven seas he went to Rijeka to study law. Upon graduation, he moved back to Novi Sad where he established his law practice and wrote plays in his spare time. Soon his passion for the stage completely engrossed him, he tried his hand both at dramatic criticism and at dramatic authorship.
His most popular dramatic pieces were Čestitam (1872), Školski nadzornik (1872), Francuski-pruski rat (1872), Izbiračica (1873), Ljubavno pismo (1874), Na Badnji dan (1876), Pola vina, pola vode (1776), Mila (1884), and Mladost Dositeja Obradovića (1894). He wrote 15 original plays (mostly comedies), and translated many foreign comedies for the Serbian theatre. Kosta Trifković's dramatic works have been translated into German, French, Italian, Hungarian, Slovenian, Bulgarian, and other languages.
He died of consumption in Novi Sad on February 19, 1875.