Tommi Mikael Hartonen (born May 12, 1977 in Helsinki) is a retired Finnish sprinter. He used to hold the Finnish national records at men's 100 m and 200 m. He won national championship in 100m run four times, 2000, 2001, 2002 and 2004. He also was 400m champion once. His personal trainer was Markus Hartonen. He is nicknamed Suomen nopein.