The
Socialist Republic of Croatia (often abbreviated
SR Croatia; ,
SR Hrvatska) was a
constituent republic of
Yugoslavia. By its constitution, modern-day
Croatia is its direct continuation. Along with five other Yugoslav republics, it was formed during
World War II and became a
socialist republic after the war. It had four full official names during its 48-year existence (see below). By territory and population, it was the second largest republic in Yugoslavia, after the
Socialist Republic of Serbia.