Summary. The aim of this study was to examine perinatal outcome of twin pregnancies in maternity wards in Livno and Knin. The perinatal outcome in these two maternity wards was examined retrospectively during the period 1990–2002. The incidence of twin births, the month with the highest incidence of twin births, the age and parity of the women with twins and their gestational age were examined. Also, we compared the perinatal outcome of twins with singletons, distribution according to sex, lie and presentation at birth. During 13 years 10 856 newborns were delivered, and 127 (1.2%) of them were twins. The incidence of twins in maternity wards in Knin and Livno during the war and after the war was not significantly different (p=0.89). The month with the highest incidence of twin births was May (14.8%). The avarage age of women with twins was 28.9±9.7. Twins were born mostly by multiparas (2–4 deliveries). 94 (74%) twins were born on term and 33 (26%) twins before term. 74 newborns (7‰) from singletons and 11 (43‰) from twins died during perinatal period. Twins were delivered by cesarean section (27%) three times more often than singletons (8%). Hypertension in twin pregnancies (7%) was twice as frequent as in singletons (4%). 132 (51.6%) male and 122 (48.4%) female newborns were born. The distribution according to sex was: 58 pairs »male-female«, 37 »male-male« and 32 pairs »female-female«. The distribution according to presentation at birth was: 49% »cephalic-cephalic«, 29% »cephalic-breech«, 12% »cephalic-transverse«, 5% »breech-breech« and all other combinations got 5%. In conclusion, our results during the war and after the war were not different from other centers and studies thanks to good antenatal care and selection of twin pregnancies for transportation on time to the center with higher level of health care.