One name, many worlds. Meet the characters called Ryuo, Ryuuou, or Dragon King — and learn when the word is a title instead.
“Ryuo” travels between anime as a personal name, a royal title, and a translation of 龍王. Browse the entries below, then follow the source links to the original series references.
The Dragon King who rules the seas. He arrives looking to settle an old score with Tomoe, the fox familiar who once took his right eye.
A character credited as Ryuou in the anime. His Japanese voice is Junko Minagawa; here, “Ryuo” is a character name rather than a title.
A shape-shifting demon from the third OVA. Yohko is drawn into another world and must face Ryuuou to save the man she met there.
Short answers for readers looking up the name, its meaning, and how it appears across series.
Ryuo is a romanized form of Japanese 竜王 or 龍王, commonly translated as “Dragon King.” Long-vowel spellings include Ryūō and Ryuuou.
Ryuo Sukuna is the sea-ruling Dragon King. The official TV Tokyo character profile credits Daisuke Namikawa as his Japanese voice actor.
No. In The Ryuo’s Work Is Never Done!, Ryuo is Yaichi’s shogi champion title, translated as “Dragon King.”
This is a sourced starter guide to three anime entries with Ryuo/Ryuuou name forms. It separates personal names from titles and is not an exhaustive catalogue.
Ryuo is one common English rendering of Japanese 竜王 / 龍王, often translated “Dragon King.” Long vowels and romanization styles vary, so you may also see Ryūō or Ryuuou. This index keeps series spellings where possible and labels titles separately from personal names.
Entries are a curated starting point, not an exhaustive catalogue. Series details and character credits can vary by adaptation.