Timothy William Farriss (born 16 August 1957) is an Australian musician, founding member and the lead guitarist of the rock band INXS.

During Farriss's painful recovery from an operation to remove abnormal bone growths in his legs, the result of a Hereditary Multiple Exostoses (which his brother Jon also suffers from), his brother Andrew recruited school friends and "Doctor Dolphin" bandmates Garry Gary Beers (bass guitar) and Michael Hutchence (vocals).

Farriss wrote and performed the song "Any Day But Sunday" on the soundtrack for the 1984 film No Small Affair, starring Demi Moore and Jon Cryer.

Farriss is a very private man who enjoys deep-sea fishing (tag and release), cricket, swimming, tennis, scuba diving, golf, snowboarding and working on the Kangaroo Valley family farm which he bought from his brother Andrew.

[7] Farriss began legal action in 2019 against the owners of the boat for damages, and revealed that he is only able to play a few beginner level chords on the guitar since the accident.