A tattoo artist is often called a tattooist. The word "tattooist" comes from the verb "to tattoo," which means to mark the skin with ink or dye using a needle. In Engpsh, the word "tattoo" can also be used as a noun to refer to the markings on the skin. For example, you could say "I have a tattoo of a heart on my arm" or "The tattooist used a special machine to create the tattoo."