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What Does RENGOKU KYOJURO Mean in Japanese?

rengoku kyojuro written in japanese kanji lettersDemon Slayer/Kimetsu no Yaiba

What’s the meaning of Rengoku Kyojuro’s name? Is it related to fire?

RENGOKU means purgatory and KYOJURO has auspicious kanji letters. Let me explain what each symbol stands for!

The family Name RENGOKU


Ren written in kanji

REN means “smelt metal” or “train oneself.” The left part of this kanji stands for fire. The right part pictures a bag in which selected metals are stocked. The whole symbol means to melt metals with fire and remove impurities from them.


Goku written in kanji

GOKU means hell. The parts on both sides of the characters stand for two fighting dogs. The middle part means “words” and “to speak” and the whole symbol pictures that someone is trying to arbitrate and judge the sin of the dogs.

These two kanji letters make the word RENGOKU, catholic purgatory which is a place between heaven and hell. It’s said that the soul of the dead is purified with fire there.

Given these backgrounds, Rengoku Kyojuro’s flame is a purification fire. It’s a powerful name!

Yes, it has a very strong sound. On the other hand, his first name has a somehow cute letter. Let’s see it!

The First Name KYOJURO


Kyo written in kanji

KYO means apricot. This is not a kanji character that gives any strong impression. It’s generally used especially for girl names.

But… the color of the apricot is red and yellow. Don’t you think it’s completely the same as Rengoku Kyojuro’s hair color?

This image has an empty alt attribute; its file name is img_apricot.png
Looks like Kyojuro’s hair color!


Ju written in kanji

This is one of the most festive and lucky Kanji characters in Japan. You’ll see this symbol on gift wrapping and envelopes in happy event scenes like a wedding ceremony. It originally means longevity. It sounds a bit ironic thinking about Rengoku-san’s fate in the Mugen Train arc.


RO means “men” and it’s frequently used for boy names. Tanjiro also has the same letter for his RO.

Is a name like Rengoku Kyojuro common in Japan?

Ah, No. It’s a manga-ish name and doesn’t exist. But I guess the number of boys with the first name Kyojuro might increase in Japan due to the influence of the Demon Slayer movie, though. The name Kyojuro is classic, but not odd.

Before Leave…

There are so many uncommon family names in Demon Slayer. But they are not all manga-ish and some of them really exist. Please check my Demon Slayer category posts to know more about other character names!

The list of Demon Slayer posts is here!

Why don’t you PIN it?
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How Did You Like It?

  1. Pedro says:

    Well done, Junko-san! I learned a lot from your article. It was so artfully and expertly written. I had a big smile as I was reading it. Thank you for sharing this with us.

  2. Ck says:

    Thanks so much for these great name break downs! After you’ve broken down theses names, can you put the full meaning, altogether, next to the name, in a sentence, it would be greatly appreciated?!

    • Junko says:

      Hi Ck, thank you for your comment and request! Well, I will think about adding the whole meaning of the name 😀

      When it comes to Rengoku Kyojuro, RENGOKU is one word with a meaning. The word KYOJURO is a proper noun, and it’s not a common word. But all the men in the Rengoku family have JURO in their names, and the first kanji letter may stand for each Rengoku man’s personality.