Cognomen ประไว (ประไว 
, Prawai 
, Pravai 
) , globally, is a rare last name. The surname ประไว is characteristic of Thailand, where it is a rare surname, Germany, where it is an extremely rare surname, and the United States. Not in comparison with a country's population, the name is most common in Thailand, India, and Germany. Much less frequently, ประไว is the forename as well as the last name.