Lars-Olof Mikael Jansson (born 4 September 1965) is a Swedish politician who was Leader of the Sweden Democrats (SD) from 1995 to 2005.

During Jansson's time as leader, the Sweden Democrats took a more direct stance against political extremism and neo-fascism within its ranks and saw a gradual increase in votes during the 1990s and early 2000s.

The same year, he released the book I eget spår genom obruten terräng about his time as party leader.

[7] In the fall of 2016 before the US election, Jansson chose to publicly go out in the Swedish media by writing an article in one of Sweden's largest newspaper Expressen saying "Should the United States maintain its superpower status it will require that someone will take a series of difficult decisions " and attacking President Obama's foreign policy, saying "American foreign policy, both have been cynical, cruel and has failed.".

Jansson was invited to several TV and radio interviews where he chose to defend his earlier statement that "Donald Trump was the best choice not only for the USA but for Europe and Sweden as well".

[8] Several Swedish media called it shocking[9] and Sweden's Minister for Justice and Migration Morgan Johansson from the Social Democrats party said on Twitter "Mikael Jansson (SD) supports Trump.