The Nair Service Society (NSS) is an organisation created for the social advancement and welfare of the Nair community that is found primarily in kerala state (south India). It was established under the leadership of Mannathu Padmanabha Pillai.[1] The NSS is a three-tier organisation with Karayogams at the base level, Taluk Unions at the intermediate level and a central headquarters operating from Perunna in Kerala, India.

The Society owns and manages a large number of educational institutions and hospitals.

The Nair Service Society, a synonym for selfless service and social commitment was founded by the late Sri.Mannathu Padmanabhan on 31 – 10 – 1914. It came into being at a crucial stage in the history of the Nair community which was facing a crisis brought about by disunity and blind adherence to outmoded customs, beliefs and practices. They had a glorious past .but ignorance, accumulated over centuries, reinforced by inadequate education, proved disastrous for the community. Their predilection for celebrations and penchant for ceremonial occasions fuelled by a strong affinity towards profligacy and extravaganza, contributed to their decline and downfall. Gradual loss of land holdings, underemployment and unemployment due to lack of modern education completed the process of disintegration.