Tamil dynasties (தமிழ் பேரரசுகள்) are the kingdoms who ruled over present day Tamil Nadu, Sri Lanka, Andhra Pradesh, Karnataka, Kerala and Odisha. These include the Pallavas, the Pandyas, the Cholas and the Cheras.
The medieval period of the history of Tamil Nadu saw the rise and fall of many kingdoms, some of whom went on to the extent of empires, exerting influences both in India and overseas. The Cholas who were very active during the Sangam age were entirely absent during the first few centuries. The period started with the rivalry between the Pandyas and the Pallavas, which in turn caused the revival of the Cholas. The Cholas went on to become a great power. Their decline saw the brief resurgence of the Pandyas. This period was also that of the re-invigorated Hinduism during which temple building and religious literature were at their best.