The flag of the abolished Croatian Republic of Herzeg-Bosnia (1992–96) consists of three equal size, horizontal stripes in the pan-Slavic colours arranged in Croat tricolour: red, white and blue.

In the middle is the coat of arms of the Croatian Republic of Herzeg-Bosnia stylised with a triple wattle at the top.

Since the entity's incorporation into the Federation of Bosnia and Herzegovina in 1994–96, the flag has come to represent Croats in the country.

"[5] In 1997 and 1998 the Constitutional Court of the Federation of Bosnia and Herzegovina ruled its usage in office unconstitutional.

[10] Croatian National Assembly uses it regularly, just as all mainstream Croat political parties in Bosnia and Herzegovina.