Alternate names: Neciuniskiai [Lith], Natzunishok and נאַציאָנישאָק / נאַצונישאָ [Yid], Netzunishki and нецунишки [Rus], Natsyonishok, Nacioniškis. 55°45' N, 25°35' E. 26 miles W of Zarasai (Novo-Aleksandrovsk), 15 miles S of Rokiškis (Rakishok), 6 miles SE of Kamajai (Kamai).
- Lithuanian Jewish Communities (1991), pp. 203-204: "Nazionishok".
- Pinkas HaKehilot, Lithuania (1996), p. 410: "Nacioniškis".
No cemetery is known. Burial may have been in another nearby town.