Troye Sivan Mellet (/trɔɪ sɪˈvɑːn/ TROY sih-VAHN; born 5 June 1995) is an Australian singer, actor and former YouTuber. As a YouTube personality, Sivan uploaded video blogs regularly and, as of 2021, has over 7.3 million subscribers and over 1.3 billion total views. After gaining popularity as a singer on YouTube and in Australian talent competitions, Sivan signed with EMI Australia in 2013 and released his third extended play, TRXYE (2014), which peaked at number five on the US Billboard 200. Its lead single, "Happy Little Pill", reached number ten on Australian music charts. In 2015, he released his fourth extended play, Wild, followed by his debut studio album, Blue Neighbourhood. The album's lead single, "Youth", became Sivan's first single to enter the top 40 of the Billboard Hot 100 chart, peaking at number 23.

His second studio album, Bloom (2018), reached number three in Australia and number four on the Billboard 200 chart. Its lead single, "My My My!", became Sivan's second number-one single on the Billboard Dance Club Songs chart. In 2020, his EP In a Dream was released.

As an actor, Sivan portrayed the younger Wolverine in X-Men Origins: Wolverine (2009) and starred as the titular character in the Spud film trilogy. In 2017, he became the youngest recipient to receive a GLAAD Stephen F. Kolzak Award. In 2018, he received a Golden Globe nomination for Best Original Song for "Revelation", from the film Boy Erased, in which he also had a supporting acting role. He has since starred in the film Three Months (2022) and the series The Idol (2023).

Early life
Sivan was born in Johannesburg, South Africa, the son of Laurelle Mellet, a homemaker and former model, and Shaun Mellet, an entrepreneur and real estate agent. At the age of two, Sivan moved to Perth, Western Australia, with his parents and three siblings. He was raised in an Orthodox Jewish family, though he does not consider himself to be religious—his father was born to a Jewish family of Lithuanian-Jewish descent and his mother converted to Judaism. Sivan attended Carmel School, a private Modern Orthodox school, until 2009, when he started distance education. His middle name turned surname Sivan is a Hebrew calendar month.