Roberto de Nobili (1577 – 16 January 1656) was an Italian priest, a member of the Society of Jesus (Jesuits), who worked as a missionary in Southern India. He used novel methods to preach Christianity, adopting many local customs of India which were, in his view, not contrary to Christian principles, and he won papal approval for a policy of accommodation that allowed coverts to Christianity to continue to engage in Hindu practices deemed social practices rather than expressions of Hinduism.