Timothy William Farriss (born 16 August 1957) is an Australian musician, founding member and the lead guitarist of the rock band INXS. Farriss was born in Perth, Western Australia, to Dennis and Jill Farriss, and is the oldest of four children: he has two brothers, Andrew and Jon, and a sister, Alison.

He was classically trained on the guitar from the ages of eight to twelve by Peter Fredericci, who played with the Australian Symphony Orchestra. As an adolescent, Farriss attended The Forest High School in Sydney. There he quickly formed a friendship with Kirk Pengilly.