The Maratha Empire, also referred to as the Maratha Confederacy, was an early modern polity in the Indian subcontinent. For most of its existence, it comprised the realms of the Peshwa and four major independent Maratha states under the nominal leadership of the former and nominal loyalty to the Chhatrapatis who were successors of Shivaji.

The Marathas were a Marathi-speaking warrior group from the western Deccan Plateau (present-day Maharashtra) that rose to prominence under leadership of Shivaji (17th century), who revolted against the Bijapur Sultanate and the Mughal Empire for establishing "Hindavi Swarajya" (lit. 'self-rule of Hindus'). The religious attitude of Emperor Aurangzeb estranged non-Muslims, and the Maratha insurgency came at a great cost for his men and treasury. The Maratha government also included warriors, administrators, and other nobles from other Marathi groups. Shivaji's monarchy, referred to as the Maratha Kingdom, expanded into a large realm in the 18th century under the leadership of Peshwa Bajirao I. Marathas from the time of Shahu I recognised the Mughal emperor as their nominal suzerain, similar to other contemporary Indian entities, though in practice, Mughal politics were largely controlled by the Marathas between 1737 and 1803.

After Aurangzeb's death in 1707, Shivaji's grandson Shahu under the leadership of Peshwa Bajirao revived Maratha power and confided a great deal of authority to the Bhat family, who became hereditary peshwas (prime ministers). After he died in 1749, they became the effective rulers. The leading Maratha families – Scindia, Holkar, Bhonsle, and Gaekwad – extended their conquests in northern and central India and became more independent. The Marathas' rapid expansion was halted with the defeat of Panipat in 1761, at the hands of the Durrani Empire. However the Marathas managed to retake most of their lost territories ten years later under the leadership of Peshwa Madhavrao I. His death eventually marked the end of Peshwa’s effective authority over other chiefs in the empire. After he was defeated by the Holkar dynasty in 1802, the Peshwa Baji Rao II sought protection from the British East India Company, whose intervention destroyed the confederacy by 1818 after the Second and Third Anglo-Maratha Wars.