politician and soldier who served as president of Haiti in 1818–43 and tried unsuccessfully to stop a severe decline in the Haitian economy.

Boyer, a mulatto (of mixed African and European descent), was educated in France. He served with the mulatto leader Alexandre Sabès Pétion (Pétion, Alexandre Sabès) and the black leader Henry Christophe (Christophe, Henry) after they had killed the Haitian dictator Jean-Jacques Dessalines in 1806. He then served with Pétion against Christophe, and, after these two leaders had died, he succeeded in unifying the country in 1821.

During his presidency, Boyer tried to halt the downward trend of the economy—which had begun with the successful revolt of black slaves against their French masters in the 1790s—by passing the Code Rural. Its provisions sought to tie the peasant labourers to plantation land by denying them the right to leave the land, enter the towns, or start farms or shops of their own and by creating a rural constabulary to enforce the code. These efforts, however, failed to stop the decline in production.

Boyer negotiated an agreement with France in 1825 by which the French consented to recognize Haitian independence in return for the payment of an indemnity of 150 million francs as compensation for the massacre of French plantation owners by black slaves during the Haitian wars of independence. These payments, subsequently reduced to nearly 60 million francs in 1838, along with the destruction of plantation owners' property, placed an impossible financial burden on the already impoverished Haitian people.

Boyer also maintained a huge corrupt army and a civil service that constantly preyed on the rural population. The gap between the black peasants in the countryside and the mulattoes of the towns grew during Boyer's presidency. The corruption of Boyer's rule and the stagnation of the economy finally led to a rebellion in 1843 that forced Boyer to flee to Jamaica and then to Paris.