A tattoo artist is an individual who applies permanent decorative tattoos, often in an established business called a "tattoo shop", "tattoo studio" or "tattoo parlour". Tattoo artists usually learn their craft via an apprenticeship under a trained and experienced mentor.

A tattoo is a form of body modification made by inserting tattoo ink, dyes, and/or pigments, either indelible or temporary, into the dermis layer of the skin to form a design. Tattoo artists create these designs using several tattooing processes and techniques, including hand-tapped traditional tattoos and modern tattoo machines. The history of tattooing goes back to Neolithic times, practiced across the globe by many cultures, and the symbolism and impact of tattoos varies in different places and cultures.