Troye Sivan Mellet (born 5 June 1995), better known as Troye Sivan, is a South African-born Australian actor, singer, songwriter, and YouTuber. As an actor, he played young James Howlett in the X-Men film X-Men Origins: Wolverine (2009), and most recently has starred as the titular character in the Spud film trilogy. Sivan also regularly makes YouTube videos, and as of 26 September 2015, has over 3.6 million subscribers and over 203 million total views.

On 15 August 2014, Sivan released his first major-label EP, entitled TRXYE, which peaked at number 5 on the Billboard 200. The lead single from the EP, "Happy Little Pill", reached number 10 in the Australian charts. On 4 September 2015, Sivan released his second major-label EP, Wild. His debut studio album, Blue Neighbourhood, was announced on 14 October and released 4 December.

His video, "The 'Boyfriend' Tag", with fellow vlogger Tyler Oakley earned them a Teen Choice Award in the "Choice Web Collaboration" category. In October 2014, Time named Sivan as one of the "25 Most Influential Teens of 2014".