Kage: The most powerful shinobi in the country and also their leader. There are five Kage's, one for each of the major countries.

Sannin: A Special Jounin that is one of the most powerful ninjas in the village and a possible candidate for becoming the next kage.

Jounin: How to become a Jounin from the level of Chuunin is not known, but they are the highest regular ranking a ninja can achieve and perform A rank missions. They can also lead groups of Chuunins and Genin in missions.

Chuunin: Once a Genin passes the Chuunin Exam, they become a Chuunin and are capable of performing B rank missions and maybe some A rank missions.

Genin: Upon graduation from the Ninja Acadamy, the students become Genin and are put into groups of three with a Jounin as their guide. Their carry out mostly C and D rank missions.