According to Croat academic Petar Šimunović, etymology is that Srb is derived from the old Croatian verb "serbati" and denoting the spring of the river Una. Because Serbs are mentioned in the Royal Frankish Annals in the context of Ljudevit Posavski, there is a theory that a Serb tribe could have existed in the area of Srb at some point in the 9th century, and that Srb was named after them, but the scarcity of historical records made various historians differ in the interpretations of this mention.
History
Srb is mentioned in the 14th century as a town of the Kingdom of Croatia. Some documents from the year 1345 mention it belonged to the Hungary-Croatian king as a royal fortress-citadel, castra nostra Regalia, videlicet Tininium.... Szereb castrum castrum Unach vocata cum Corum supatibus et pertinensiis. This town was built on a hill high above the stream Sredice, where its remains still stand today. After the World War II invasion of Yugoslavia, Srb became part of the fascist Independent State of Croatia. On July 27, 1941, an uprising started in Srb organized by the local Serb population, the Srb uprising. The organizers, including the Lapac squad commander Stojan Matić, weren't all communist Partisans, and their immediate reprisals against the Ustaše also ended with random Croat and Muslim victims, which Marko Orešković later intervened against. The date was nevertheless later commemorated in SR Croatia as the Day of the Uprising of the Peoples of Croatia. On July 25, 1990 an assembly of approximately 100,000 Croatian Serbs was held in Srb. A declaration was released which established a Serbian Assembly, with its seat in Srb, as the political representative of the Serbian nation in Croatia, and the Serbian National Council as the executive body of the Assembly. Croatian Serb politician Jovan Rašković announced that a referendum would be held within the Serb community on August 18.
Savezni zavod za statistiku i evidenciju FNRJ i SFRJ, popis stanovništva 1948, 1953, 1961, 1971, 1981. i 1991. godine.
Knjiga: "Narodnosni i vjerski sastav stanovništva Hrvatske, 1880-1991: po naseljima, author: Jakov Gelo, izdavač: Državni zavod za statistiku Republike Hrvatske, 1998.,, ;
