Kauko Armas Nieminen (15 February 1929 – 2010) was a Finnish self-taught physicist.

Nieminen's research and theories in physics were unusual.

Nieminen claimed his theories could explain gravity, quantum phenomena, ball lightnings, and the creation of the world.

[2] Nieminen was also very critical towards the established scientific community, though not towards students of science, and had been frequently invited to lecture to the same amidst mutual respect and good humor.

Kauko Nieminen was a deputy city council member of Helsinki from 2001 to 2004.