Contai III is a community development block that forms an administrative division in Contai subdivision of Purba Medinipur district in the Indian state of West Bengal.

Purba Medinipur district is an administrative unit in the Indian state of West Bengal. It is the southernmost district of Medinipur division – one of the five administrative divisions of West Bengal. The headquarters in Tamluk. It was formed on 1 January 2002 after the Partition of Medinipur into Purba Medinipur and Paschim Medinipur which lies at the northern and western border of it. The state of Odisha is at the southwest border; the Bay of Bengal lies in the south; the Hooghly river and South 24 Parganas district to the east; Howrah district to the north-east; Paschim Medinipur district to the west.