Theiviya Selvarajoo (born 20 June 1994) is a Malaysian tennis player.
Selvarajoo made her WTA tour debut at the 2013 Malaysian Open, having received a wildcard with Yus Syazlin Nabila Binti Yusri into the doubles tournament. At the 2015 Malaysian Open, Selvarajoo received a wildcard into the doubles main draw with Jawairiah Noordin.
Playing for Malaysia at the Fed Cup, Selvarajoo has a winâÂÂloss record of 4âÂÂ4.