The city coat of arms contains the Croatian checkerboard, the nearby tower in Počitelj, and Saint Francis of Assisi.

[1] Čapljina is situated in the wider Neretva valley region (the original homeland of ancient Illyrian people of Ardiaei), and its name derives from čaplja which means 'heron'.

Indeed, the word Ardiaei is found in ancient Greek sources predating the arrival of Romans and their language to the Illyrian lands.

[3] Since World War II it has been an important road and rail transportation link, connecting the rest of Bosnia and Herzegovina with the port of Ploče in Croatia.

[5] The officials of Čapljina, Stolac, Čitluk and Neum declared the state of natural disaster on their territories.