Family name Hiat (Hiat 
, حیات 
, เหียด 
) , all around the world, is quite a rare surname. The family name Hiat is habitual in Afghanistan, where it is quite a rare surname, Oman, where it is a rare surname, and Saudi Arabia. Measured by absolute frequency, it is commonest in Afghanistan, Pakistan, and Saudi Arabia. Also, Hiat is the forename as well as the last name.