Effective period / Period of releases: 1991 - 2006

Members: Lillis Persson, Kent Liljefjäll, Torbjörn Eriksson, Tony Ljungström, Ove Olsson, Morgan Östlin, Peder Matz, Micke Östlin, Kjelle Danielsson, Henrik Wallrin, Ola Jonsson, Lars-Roger "Lillis" Petersson, Magnus Liljeby

BlackJack is a Swedish dance-orchestra from Sundsvall. "BlackJack" was the name of the Swedish film from 1990 by Colin Nutley about a similar band. In this film Tony Ljungström played a band member called Mats. After the film, Tony and the other members used the title of the film as a band name when they started their orchestra in 1991.

Members:
* Kjelle Danielsson - vocals
* Peder Matz - keyboards, accordion, bass
* Morgan Östlin - saxophone, keyboards, mandolin
* Ove Olsson - guitar, vocals, bass
* Mikael Östlin - drums

Former members:
* Tony Ljungström - vocals