Kamalanathan s/o Panchanathan (Tamil: பி.கமலநாதன், romanized: Pi.Kamalanātaṉ; born 18 October 1965) is a Malaysian politician.

He is a member of the Malaysian Indian Congress (MIC) in the Barisan Nasional (BN) coalition.

[1] He was the former Member of the Parliament of Malaysia for the seat of Hulu Selangor and former Deputy Minister of Education I. P. Kamalanathan was elected to Parliament in a 2010 Hulu Selangor by-election after the death of the incumbent member Zainal Abidin Ahmad.

The by-election saw the seat shift from Zainal's opposition People's Justice Party (PKR) to the Barisan Nasional.

The MIC had sought to field veteran politician and defeated former Hulu Selangor Member of Parliament Palanivel Govindasamy, but Barisan Nasional's leaders wanted a lesser-known winnable candidate.