The Triple J Hottest 100 is an annual music listener poll hosted by the publicly funded national Australian youth radio station Triple J. Members of the public are invited to vote for their favourite Australian and alternative music of the year in an online poll conducted two weeks prior to the new year.

Triple J is a government-funded, national Australian radio station that began broadcasting in 1975 as a division of the Australian Broadcasting Corporation (ABC). It aims to appeal to young listeners of alternative music, and plays more Australian content than commercial networks.