Rajapalayam may refer to:
Rajapalayam, a city in Virudhunagar district in the Indian state of Tamil Nadu Rajapalayam (State Assembly Constituency), an assembly constituency located in Sivakasi Lok Sabha Constituency in Tamil Nadu Rajapalayam dog, an Indian Sighthound Rajapalayam block, a revenue block in the Virudhunagar district of Tamil Nadu, India