Senior is Latin for "elder."

Senior can refer to:

    * A person of old age.
    * A student in the last (usually fourth) year at a college or university.
          o A student in the twelfth grade, in high school.
    * A suffix (name) for the elder of two or more people in the same family with the same given name, usually a parent or grandparent.
    * Nassau William Senior (1790-1864), an English economist.
    * Julio Ximenes Senior (1901-1975), a Brazilian scientist and Army general.