Larry Bird is adamant he's NOT a "tattooed guy" -- and he ain't happy with a new mural in Indiana that depicts him as a walking canvas.
The NBA legend's attorney has reached out to Jules Muck, the artist who created the Bird tribute on a Fountain Square building in Indianapolis ... an image that shows a young Bird with ink on his face, chest and arms.
In the mural, Bird looks like a SoundCloud rapper -- with tats showing everything from bunnies humping to the word "Indiana" on his forearm .