Surname Rojna (Rojna 
, โรจนะ 
) , around the globe, is a rare cognomen. The last name Rojna is characteristic of Thailand, where it is a rare surname, Poland, and the United States, where it is an extremely rare surname. In absolute terms, the name is most common in Thailand, Poland, and India. More frequently, Rojna is the forename as well as the last name.