Where is the nearest black hole in the universe to the earth?

Judging from the current findings, the nearest black hole to the earth may be Cygnus X- 1.

Cygnus X- 1(CygX- 1) is about 6000 light years away from the earth. It is a huge blue planet, more than 30 times heavier than the sun. The planet was dragged by an invisible object weighing about 10 suns. This invisible planet is about 10 times the mass of the sun and about 60 kilometers (18 miles) in diameter. It is located in the constellation Swan. Cygnus X- 1 is the first confirmed black hole and the closest black hole to the Earth.