Ichikawa Ebizō (市川 海老蔵?) is a stage name taken on by a series of Kabuki actors of the Ichikawa family. Most of these were blood relatives, though some were adopted into the family. It is a famous and important name, and receiving it is an honor.
Ebizō, like other actors' names, is bestowed (or given up) at grand naming ceremonies called shūmei in which a number of actors formally change their names. A number of actors have followed a particular sequence in their stage names, preceding "Ebizō" by being called Ichikawa Shinnosuke or Matsumoto Kōshirō, and following it by achieving the name Ichikawa Danjūrō.
The design of the Ichikawa family mon, three squares nested inside one another, is called mimasu (三升).