Iluppaiyur or Illupaiyur is an agricultural panchayat village in the Virudhunagar district of Tamil Nadu, India. It is one of several settlements in Tamil Nadu named for the Iluppai tree.M. Tamilselvi, R. Sreebha, and A. Aruna Devi, Environmental Studies, Alinagar: JEC, 2025, , p. 11.

Geography The seasonal Gundaru River flows to the east of Iluppaiyar. Iluppaiyar Road passes through the village, connecting it to Velanoorani and Kattanpatti to the southeast and to Pillaiyar Natham to the northwest.

Demographics The village is predominantly inhabited by members of the Nadar and Chettiar communities. At the 2011 census of India, the population was 627, with 168 households, of whom 456 (247 males and 209 females) were literate."Illuppaiyur", VillageInfo, retrieved 9 July 2025.

Religion and festivals Sri Kaliamman Temple, Velanoorani is in Illupaiyar. The village holds a five-day Panguni Pongal festival every April.

Education NKV Sala (Nadar Kshathriya Vidhya Sala) primary school is in Iluppaiyur."N.K.V.SALA PRI.SCH, ILUPPAIYUR", Schools.org.in, retrieved 9 July 2025.

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