Last name Ainārs (Ainars 
, Ainārs , Айнарс 
) , globally, is an extremely rare family name. The surname Ainārs is characteristic of Israel, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and the United States. Predominantly, Ainārs is the forename as well as the last name.
Spilo, Putniņš, Rubenis, Liepiņš, Jaudzems, Ozoliņš, Zariņš, Stabiņš, Kalniņš, Kļaviņš, Landmanis, Lielmežs, Neimanis, Bērziņš, Krastiņš, Kārkliņš, Feldmanis, Petrovskis, Kusiņš, Turcinovičs, Kumpiņš, Beitiks, Pauls, Liepa, Uzuls, Mednis, Spūlis, Auziņš, Belovs, Dzenis, Gulbis, Laizāns, Lācis, Eglītis, Vanags, Āriņš, Siliņš, Sviklis, Balodis, Bobulis, and Jakubovičs