Jonas Erik Altberg (Swedish pronunciation: [ˈjûːnas ˈêːrɪk ˈâltbærj]; born 22 December 1984 in Halmstad), better known by his stage name Basshunter (also stylised as BassHunter), is a Swedish singer, record producer and DJ. He began producing music under the stage name "Basshunter" in 2001.

He recorded six studio albums: The Bassmachine (2004), LOL (2006), The Old Shit (2006), Now You're Gone – The Album (2008), Bass Generation (2009) and Calling Time (2013). In addition to his own music, he has written for El Capon, Mange Makers and Lana Scolaro. He also took part in the British seventh series of Celebrity Big Brother, the Swedish Fångarna på fortet and the British Weakest Link in 2010.

He won awards such as the European Border Breakers Award, the Grammi award for Best Ringtone of the Year in 2006, and the World Music Award. He was also nominated for the BT Digital Music Award, MTV Europe Music Award, and Rockbjörnen. According to 2014 Extensive Music label figures, more than seven million Basshunter records have been sold.