The Argentine Civil Wars are a series of internecine wars that take place in Argentina from 1814 to 1880.

These conflicts are separate from the Argentine War of Independence (1810–1820), though they first arise during this period.The main antagonists are, on a geographical level, Buenos Aires Province and the other provinces of modern Argentina, and on a political level, between the Federal Party and the Unitarian Party.

The central cause of the conflict is the excessive centralism advanced by Buenos Aires leaders and, for a long period, the monopoly on the use of the Port of Buenos Aires as the sole means for international commerce.

Other participants at specific times include Uruguay, and the British and French empires, notably in the French blockade of the Río de la Plata of 1838 and in the Anglo-French blockade of the Río de la Plata that ends in 1850.