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Surname Kalniņš (Kalniņš , Калниньш , Калныньш ) , in all the world, is quite a rare last name. The cognomen Kalniņš is habitual in Latvia, where it is quite a common surname, Estonia, where it is a rare surname, and Russia. In absolute terms, it is commonest in Latvia, Russia, and Ukraine.
Ivo, Ojārs, Uldis, Ģirts, Māris, Sandis, Andris, Arturs, Artūrs, Aigars, Aivars, Kalvis, Krists, Krišs, Klāvs, Kārlis, Pä Teris, Pēteris, Raitis, Raivis, Reinis, Dainis, Olafs, Igors, Ivars, Ingus, Miks, Atis, Dins, Toms, Niks, Uvis, Maris, Mikus, Aldis, Andis, Didzis, Artis, Agris, Pauls, Raivo, Ralfs, Gatis, Gvido, Janis, Juris, Edijs, Egons, Arnis, and Dāvis