All around the world, صيف (صيف 
) is a rare largely masculine, but seldom female forename. The first name صيف is habitual in Syria, where it is a rare girly name, Sudan, where it is a rare boy's name, and Iraq. Measured by absolute frequency, the name is most common in Egypt, Sudan, and Iraq. More frequently, صيف is the last name as well as the forename.