An émigré is a person who has emigrated, often with a connotation of political or social self-exile. The word is the past participle of the French émigrer, "to emigrate".
Whereas emigrants have likely chosen to leave one place and become immigrants in a different clime, not usually expecting to return, émigrés see exile as a temporary expedient forced on them by political circumstances. Émigré circles often arouse suspicion as breeding-grounds for plots and counter-revolution.
French Huguenots were forced to leave France following the Revocation of the Edict of Nantes in 1685.
Many Loyalists that made up large portions of Colonial America, particularly in the South, fled America during and after the American revolution. Common destinations were other parts of the British Empire such as Upper Canada, Nova Scotia, Great Britain, Jamaica, and the British West Indies. The lands left by the fleeing Tories were often awarded by the new government to Patriot soldiers by way of land grants.
Although the French Revolution began in 1789 as a peaceful, bourgeois-led effort for increased political equality for the Third Estate, it soon turned into a violent, popular rebellion. To escape political tensions and save their lives, a number of individuals emigrated from France and settled in the neighboring countries (chiefly Great Britain, Spain, Germany, Austria, and Prussia), however quite a few also went to the United States.
White Russian émigrés or other opponents of the regime, who fled the Bolshevik Revolution of 1917 and its aftermath.
Marx and Engels, in setting out the strategy for future revolutions in The Communist Manifesto, included the provision that the property of émigrés should be confiscated and used to finance the revolution — a recommendation followed by the Bolsheviks 70 years later.