The National Democratic Union (Armenian: Ազգային ժողովրդավարական միություն, romanized: Azgayin zhoghovrdavarakan miut’yun; AZhM) is a political party in Armenia.

The party received 7.7% of the vote in the 1995 Armenian parliamentary election and won five seats in the National Assembly.

[1] The party nominated Manukyan as its candidate in the 1996 Armenian presidential election, he came in second place winning 41% of the vote.

During the 2020–2021 Armenian protests, Vazgen Manukyan was nominated by the Homeland Salvation Movement political alliance to be its leader.

A single member of the National Democratic Union, Adrine Avagyan, participated in the 2023 Yerevan City Council election under the Mother Armenia Alliance ballot.