Niederelbert is an Ortsgemeinde – a community belonging to a Verbandsgemeinde – in the Westerwaldkreis in Rhineland-Palatinate, Germany.

The community lies in the Westerwald south of Montabaur in the Nassau Nature Park.

The golden lily in blue is taken from the arms borne by the feudal lords of Helfenstein.

For the four brooks (Elbertbach, Gambach, Seelebach and Weiherhellbach), the arms symbolically bear the golden wavy fess with the four waves.

The nearest InterCityExpress stop is the railway station at Montabaur on the Cologne-Frankfurt high-speed rail line.