Mirko Giansanti (14 September 1976 – 7 August 2023) was an Italian Grand Prix motorcycle road racer.

Born in Terni, the son of the motorcycle racer Fosco [it], Giansanti made his Grand Prix motorcycle racing debut in 1996, as a wild card with the Pileri team.

[2] During his Grand Prix career he achieved a total of 12 podiums.

[1] Following his 2005 Grand Prix retirement, in 2008 Giansanti resumed activity, competing in the Supersport World Championship for three seasons.

[1] In 2016 he co-founded with Filippo Conti the Giansanti Racing Team, with which he competed in the Supersport World Championship, winning a title in 2015 with Lucas Mahias, and in the Superbike World Championship.