Definitions of tanner:

• noun:   a craftsman who tans skins and hides
• noun:   a small coin of the United Kingdom worth six pennies; not minted since 1970
• name:  A surname (common: 1 in 5263 families; popularity rank in the U.S.: #640)
• name:  A male given name (rare: 1 in 16666 males; popularity rank in the U.S.: #931)