Alangudi may refer to:
Places in Tamil Nadu, India Alangudi, Nagapattinam, a village in Nagapattinam district Alangudi, Nannilam, a village in Tiruvarur district Alangudi, Papanasam taluk, a village in Thanjavur district Alangudi, Pudukkottai, a town in Pudukkottai district Alangudi Assembly constituency, a state assembly constituency Alangudi taluk, a taluk in Pudukkottai district Alangudi (Sivaganga), a village in Sivaganga district Alangudi, Valangaiman, in Tiruvarur district, site of the Apatsahayesvarar Temple, Alangudi
People Alangudi Somu (1932−1997), Indian Tamil film lyricist Alangudi Vanganar, Tamil poet of the Sangam period