National Agreement (Greek: Εθνική Συμφωνία – Ethnikí Symphonía – E.SY.) was founded by Konstantinos Bogdanos, an independent Member of the Greek Parliament after his expulsion from the New Democracy party.

In the announcement of the new party on April 5 2022 its founder described it as “a platform, a call, an NGO for Greeks and those who understand themselves as Greeks”. He also called on the “patriotic-liberal political area to agree upon common positions and participate in the coming elections under a unified party presence”.