The coat of arms of the Republic of Estonia (Estonian: Eesti riigivapp) is a golden shield which includes a picture of three left-facing blue lions with red tongues in the middle, with golden oak branches placed on both sides of the shield.

[1][2] The lions became part of the greater coat of arms of Tallinn (Reval), the centre of Danish government in Estonia, and the fiefdoms (German: Ritterschaften) of Harria and Viru.

In 1346, the king of Denmark sold his Estonian dominion to the State of the Teutonic Order.

The Riigikogu (parliament) of the newly independent Republic of Estonia adopted the law which confirmed it as the national coat of arms on 19 June 1925.

After World War II the coat of arms remained in use in the Western Bloc countries by a number of surviving diplomatic representatives of the Republic of Estonia, by the Estonian government-in-exile and by the large Estonian diaspora.