Surname Siwar (Siwar 
) , in the entire world, is quite a common cognomen. The family name Siwar is habitual in Tunisia, where it is quite a common surname, Israel, where it is quite a rare surname, and Malaysia. Measured by absolute frequency, it is the most numerous in Tunisia, Algeria, and Israel. More prevalently, Siwar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siwar | Tunisia, Malaysia, Israel, Syria, Algeria |
Siwàr, Siwár, Siwâr, Siwãr, Siwār, Sìwar, Sìwàr, Sìwár, Sìwâr, Sìwãr, Síwàr, Síwár, Síwâr, Síwãr, Sîwar, Sîwàr, Sîwár, Sîwâr, Sîwãr, Sîwăr, Sïwar, Sïwàr, Sïwár, Sïwâr, Sïwãr, Sïwār, Sīwâr, Sįwãr, Sįwār, Śiwar, Šiwar, Šïwãř, Сивар, سِوار, سیوار, 丝华, 厶华, 司华, 嗣华, 四华, 寺华, 巳华, 思华, 思沃, 撕华, 斯华, 斯瓦尔, 死华, 汜华, 泗华, 祀华, 耜华, 肆华, 蕼华, 西华, 西沃, 锡华, 锡沃, 锶华, and 驷华