Estland may refer to:
* ''Estland'', the modern name for Estonia in several languages
*Danish Estonia#Duchy of Estonia, Danish duchy of Estonia ( da, Hertugdømmet Estland), a ''dominum directum'' of the King of Denmark from 1219 until 1346 in what is now Northern Estonia until it was sold and became:
** A dominion of the Livonian Order within Terra Mariana in 1346–1561, until it was conquered by the Swedish Empire in the Livonian War and became:
*** The Swedish Estonia, Swedish duchy of Estonia ( sv, Hertigdömet Estland) in 1561–1721 until conquered by the Tsardom of Russia in the Great Northern War and became:
**** The Governorate of Estonia (russian: Эстляндская губерния , translit=Estlyandskaya guberniya) of the Russian Empire in 1721–1917
* An island in the Atlantic Ocean on the 1558 Venetian Zeno map, possibly corresponding to Shetland
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