Not to be confused with Jelonzo.
He keeps his tentacles on the latest fashions.
— Jelfonzo's Description

Jelfonzo is a jellyfish character debuting in Splatoon 2, in which he manages Ye Olde Cloth Shoppe. He speaks using archaic vocabulary, similar to Shakespearean English.


According to his origin story, Jelfonzo apparently "split" off of Jelonzo, the Jellyfish responsible for running Jelly Fresh located within Booyah Base in Inkopolis Plaza, and therefore could be considered Jelonzo's son. He studied the Inkling language through ancient texts, thus adapting fairly outdated terminology (as demonstrated in the name of Ye Olde Cloth Shoppe). Despite this, he is still up to date with the freshest trends.


  • Jelfonzo's Japanese name is "Bizen", and Jelonzo's Japanese name is "Echizen". These two come from the provinces of Ancient Japan.
  • His name is a portmanteau of "jelly[fish]" and "Alfonzo", the latter of which is a Spanish variant of the Gothic language name Alphons, which means "ready noble".