Cognomen Ridalin (Ridalin 
) , in the entire world, is an extremely rare last name. Much more prevalently, Ridalin is the forename as well as the last name.
Sun, Sohlang, Sohkhlet, Syngkli, Syiemiong, Syiemlieh, Ksyiemiong, Pariong, Dohling, Lyngdoh, Lyngkhoi, Thongni, Nongrum, Nongbri, Wanniang, Wahlang, Suchiang, Kurkalang, Pyngrope, Nongsiej, Sangriang, Kharkongor, Shabong, Mawlong, Marwein, Marngar, Sten, Swer, Makri, Syiem, Kdewsaw, Dkhar, Lamin, Laloo, Jyrwa, Warjri, Marbaniang, Marboh, Shadap, Shylla, Suting, Sohtun, Kurbah, Kshiar, Rynjah, Dewsaw, Lamare, Thabah, Mukhim, and Ryntathiang