The fourth season of the tattoo reality competition Ink Master premiered on Spike on February 25 and concluded on May 20, 2014, with a total of 13 episodes. The show is hosted and judged by Jane's Addiction guitarist Dave Navarro, with accomplished tattoo artists Chris Núñez and Oliver Peck serving as series regular judges. The winner will receive a $100,000 prize, a feature in Inked Magazine and the title of Ink Master.

This season saw the return of season three contestant Kyle Dunbar, who originally finished the competition in 4th place.

The winner of the fourth season of Ink Master was Scott Marshall, with Walter "Sausage" Frank being the runner-up.

The judging panel is responsible for passing judgement on each artist. They collaborate and use information from their own perception, the audience vote, human canvas vote, and the winner's worst vote to determine who should be sent home. Weight of decisions is set by the terms of the challenge skill.

Audience voting, introduced in season two, is done through Facebook and Twitter using the available tattoos for vote on the Ink Master website. Voting will directly affect the contestant lineup for the following season; the contestant with the highest vote count will have the opportunity to return.

The canvases for the challenge gather after the tattoos are completed and vote on the best and worst of the days tattoos. While the primary judges have the final say, the weight of the canvas vote does affect the final decision of the judging panel.

This season allowed the winner of the elimination tattoo challenge to put a contestant in the bottom.

Names, experience, and cities stated are at time of filming.