Kalamata (Greek: Καλαμάτα [kalaˈmata]) is the second most populous city of the Peloponnese peninsula in southern Greece after Patras, and the largest city of the homonymous administrative region. As the capital and chief port of the Messenia regional unit, it lies along the Nedon River at the head of the Messenian Gulf.

The 2021 census recorded 72,906 inhabitants for the wider Kalamata Municipality, of which 66,135 resided in the municipal unit of Kalamata, and 58,816 in the city proper. Kalamata is renowned as the land of the Kalamatianos dance, Kalamata olives and Kalamata olive oil.

The modern name Kalamáta likely comes from Παναγία η Καλαμάτα, Panagía i Kalamáta, 'Virgin Mary with beautiful eyes'; another hypothesis is a corruption of the older name Καλάμαι, Kalámai, 'reeds'.

The municipality Kalamata was formed as part of the 2011 local government reform by the merger of the following four former municipalities, each of which subsequently became municipal units:

The municipality has an area of 440 km² (170 mi²), the area of the municipal unit is 253 km² (98 mi²).

The municipal unit of Kalamata is subdivided into the following communities (population according to the 2021 census, settlements within the community listed):

Municipal Unit:

Local communities: