The Robba Fountain (Slovene: Robbov vodnjak), since the first half of the 20th century also known as the Fountain of the Three Carniolan Rivers (Vodnjak treh kranjskih rek), is the fountain that stands in front of Ljubljana Town Hall at Town Square in Ljubljana, the capital of Slovenia.

[1] It was originally made in 1751 by the Italian sculptor Francesco Robba and is one of the city's most recognisable symbols.

In its creation, Robba was inspired by Bernini's Fontana dei Quattro Fiumi (Fountain of the Four Rivers) at Piazza Navona during a visit to Rome, but he modelled it after Fontana del Pantheon, the fountain by Filippo Barigioni at Piazza della Rotonda.

[1] In 2006, the original fountain was renovated and moved into the National Gallery, whereas at Town Square it has been replaced by a replica.

[3] After Slovenia declared independence from Yugoslavia, the Robba Fountain was portrayed by Rudi Španzel on the 5,000 Slovenian tolar banknote.