Cognomen រ៉ាន់ណា (រ៉ាន់ណា 
) , in the world, is an extremely rare family name. The family name រ៉ាន់ណា is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. Much more frequently, រ៉ាន់ណា is the forename as well as the last name.