Jan Kojan (1886–1951), painter and sculptor, is the designer of monuments to those killed in wars in Kojákovice and Branná. After his stay in Paris in 1926 he became fully devoted to painting. His main subjects included fishermen, fish pond harvests, fish pond dams and villagers – human figures and labour.
František Líbal (1896–1974), who studied at the Třeboň gymnázium (secondary school), was a landscape and architecture painter. He gained his expertise at the Academy of Arts in Prague, and travelled around Europe a great deal. The focus of his work is the South Bohemian landscape, mainly Veselská blata (Veselská marshes) and the Třeboň area. Since his youth he was attracted by the gloomy melancholic fish ponds, black clouds hanging low over the countryside and mysterious beauty of the marshland. Paintings by František Líbal are collected in Czech and foreign art galleries. He dedicated more than 200 of his pieces to the town of Třeboň.
Nina Bonhardová (1907–1981), Czech journalist and novelist, author of historic novels from the times of the last Rosenbergs: Tanec rabů, Selský mor, Polyxena, Královský úděl and of children´s books. The most popular are her Pohádky třeboňského kapra (Fairy-tales of a Třeboň Carp).
František Volf (1897–1983), Třeboň native and local secondary school alumnus, devoted himself to collecting and ethnography activities and became a member of the Prague artist group Mánes. He dedicated the latter half of his life to painting. He exhibited in Třeboň in 1969, 1976 and 1980. In 1977 he was awarded the title honorary freeman of the town of Třeboň. He lived here during the last years of his life.
Karel Mejta, Jiří Havlis, Jan Jindra, Stanislav Lusk and Miroslav Koranda – members of the Třeboň fouroar with coxswain, Olympic winners from Helsinki 1952, won the first Olympic gold for Czech rowing. The Třeboň champions without a trainer won the mastership of Czechoslovakia in 1951 and in May 1952 qualified for the XV. Summer Olympics in Helsinki, Finland. A crew of almost unknown young men defeated the favoured crews from Switzerland, USA and Great Britain. They confirmed their win at the European championship in Copenhagen in 1953.
Ing. Jiří Hanzelka (1920–2003) was a famous Czech traveller and writer. Together with Ing. Miroslav Zikmund they made trips in a Tatra car to Africa, South America, Asia and Oceania. In 1987 he moved to Sedlo near Jindřichův Hradec. He is buried at St. Giles Cemetery near the Schwarzenberg Tomb by Domanín.