Seniūnaitija ("sub-eldership") is the lowest level administrative-territorial unit in Lithuania. Seniūnaitija is led by a seniūnaitis who represents communities of inhabited places. Seniūnaitis are elected for a 2-year tenure.

The amendment of the law on 15 September 2008 describes the regulations regarding sub-elderships.LIETUVOS RESPUBLIKOS VIETOS SAVIVALDOS ĮSTATYMO PAKEITIMO ĮSTATYMAS 2008 m. rugsėjo 15 d. Nr. X-1722, AŠTUNTASIS SKIRSNIS: ATSTOVAVIMAS GYVENAMŲJŲ VIETOVIŲ BENDRUOMENĖMS The first sub-elderships established by municipalities appeared in November and December 2008, and by 2009, most of municipalities had established sub-elderships.

See also Administrative divisions of Lithuania Counties (Lithuanian: singular – apskritis, plural – apskritys) Municipalities (Lithuanian: plural – savivaldybės, singular – savivaldybė) Elderships (or wards) (eldership, ward) (Lithuanian: plural – seniūnijos, singular – seniūnija). Cities (Lithuanian: plural – miestai, singular – miestas) Towns (Lithuanian: plural – miesteliai, singular – miestelis)

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