Leif-Ivan Karlsson (born April 9, 1960, in Överkalix) is a well-known Swedish entrepreneur, businessman, and television personality. He gained widespread public recognition through his appearances in reality series such as Svenska miljonärer ("Swedish Millionaires") and his own show, Karlssons. Over the course of his career, Karlsson has amassed a substantial fortune, primarily through extensive dealings in the automotive and real estate sectors, as well as the operation of housing facilities for refugees.