The word "Master" can refer to several things in the world of Ninjago:
- Spinjitzu Master, those who have mastered all four elements. So far, there are two known Spinjitzu Masters:
- "Masters of Spinjitzu," the subtitle of the Ninjago television show.
- The four original Ninja, who mastered their respective elements, as indicated by the episode "The New Masters of Spinjitzu."
- The Elemental Masters, who have all mastered their respected elements, and helped the Ninja defeat the Anacondrai Cultists.