一徹

Ittetsu

boyJapanese

Ittetsu is a boy name of Japanese origin, meaning “Single-minded, steadfast”.

MeaningSingle-minded, steadfast
GenderBoy
OriginJapanese
Written as一徹
Pronunciationeet-TET-soo
TraditionModern & Classic
Used inJapan

Meaning and origin of Ittetsu

Ittetsu is a Japanese name usually written 一徹, a word meaning 'single-minded' or 'stubbornly devoted', from ichi 'one' and tetsu 'to go through, persist'. It suggests a person who sees things through to the end. The character tetsu sounds the same as the word for iron, which explains the common but inaccurate gloss 'iron'. Fans of the manga Haikyu!! know the teacher Ittetsu Takeda.

Is Ittetsu a religious name?

Ittetsu is a Japanese cultural name with no specific religious background.

How popular is Ittetsu?

Uncommon in Japan.

Gifts with the name Ittetsu

As an Amazon Associate we earn from qualifying purchases. We may earn a small commission from these links, at no extra cost to you.

Names similar to Ittetsu

TetsuyaIchiroTakeshiIsshinTetsuo

More boy names

Frequently asked questions

What does the name Ittetsu mean?

Ittetsu means 'Single-minded, steadfast'. It is of Japanese origin.

Does Ittetsu have a religious meaning?

Ittetsu is a Japanese cultural name with no specific religious background.

How do you pronounce Ittetsu?

Ittetsu is pronounced eet-TET-soo.

Is Ittetsu a boy or girl name?

Ittetsu is usually a boy name.

Updated October 2026. Spotted a mistake? Tell us.