NomOrigine Background

Last Name Iwamoto

What is the origin of the last name Iwamoto?

The surname Iwamoto is of Japanese origin. It is derived from two components: "Iwa" which means rock or stone, and "moto" meaning base or foundation. Therefore, the name Iwamoto can be roughly translated as "from a place with many rocks at its base." It should be noted that Japanese surnames are traditionally patronymic, with the father's surname being passed down to the children. However, in the case of Iwamoto, it is likely that it originated from the name of a place, rather than being a patronymic surname. The Iwamoto surname can be found throughout Japan and has many branches and variations due to the country's history of regional migration and clan affiliation.

Unlock and discover the hidden secrets of the surname Iwamoto

Unlock the Secrets of Your Surname Now

For only 3.95 $, you get:

  • Full access for 7 days
  • Unlimited access to all name and surname profiles
  • High-quality Origin Certificate
  • Download: Keep a precious memory with your origins downloadable in PDF format.
  • Unlimited search
  • Ad-Free: Enjoy a smooth and uninterrupted user experience.
  • ✅ 15-Day Money-Back Satisfaction Guarantee!
Unlock the Secrets of Your Surname Now
🎁 Special offer today: 3.95 $ instead of 6.95 $
⏳ This exclusive offer expires in:

✅ 15-Day Money-Back Satisfaction Guarantee!

What our users say

“I discovered fascinating details about my family history. This service is amazing for tracing our roots!” - Jean D.

“This site strengthened our sense of family belonging by uncovering our origins. Highly recommended!” - Marie L.

“The information was detailed and accurate. I learned interesting facts about my ancestors. A must-have!” - Paul S.

✅ Join the 5,000+ people who have already discovered the fascinating history of their last name!

Discover my family history now

Frequently Asked Questions

Question: What will I discover by exploring my last name?
Answer: You will discover the geographical origin, etymology, and unique history of your last name. You can also explore family traditions and historical events connected to it.

Question: How long does it take to access the information?
Answer: Once your payment is confirmed, access is instant. You can start exploring right away.

Question: Are the details about my last name accurate?
Answer: Our data comes from extensive research in reliable archives and historical databases. While we cannot guarantee 100% accuracy, we strive to provide the most complete and precise information possible.

Payment Information

or pay by card

By clicking 'Confirm my payment', you agree to our refund policy, accessible via this link: Refund Policy, as well as our cancellation policy accessible via this link: Cancellation Policy

Learn more about the origin of the last name Iwamoto

The meaning and origin of the last name Iwamoto

The surname Iwamoto is a Japanese patronymic name that derives from the kanji characters 岩 (Iwa) which means "rock" or "stone," and 本 (Moto) meaning "base," "root," or "origin." Thus, Iwamoto can be translated as "one who lives at the base of the rock" or "one whose home is at the foot of a rocky outcrop." This surname is relatively common in Japan and may have originated from various locations where these specific characters are used in place names. The name Iwamoto first appeared during the Heian period (794-1185) and has been passed down through generations as a hereditary name. Today, it can be found among Japanese immigrants worldwide.

Geographical distribution of the last name Iwamoto

The surname Iwamoto is predominantly Japanese, originating from the Kanji characters "岩" (Iwa) meaning rock, and "本" (Moto) meaning base or foundation. In Japan, it is most commonly found in the Kansai region, particularly in Osaka and Kyoto prefectures, as well as in Hokkaido and Tohoku regions. However, due to historical migration patterns, significant populations with the surname Iwamoto can also be found in other parts of Japan such as Tokyo, Aomori, and Fukuoka.

On a global scale, the largest communities of people with the last name Iwamoto reside outside of Japan, particularly in countries with a high Japanese immigrant population, such as Brazil, Peru, and the United States (most notably Hawaii and California). In North America, Canadian census data shows that British Columbia has the highest concentration of individuals with the surname Iwamoto.

Variants and spellings of the last name Iwamoto

The surname Iwamoto has several variations and spellings due to differences in transliteration and regional pronunciation. Some of the common variants include:

1. Iwamoto (standard Romanization)
2. Yewamoto (alternative Romanization)
3. Eiamotou (Kunrei-shiki system)
4. Eyamoto (Nihon-shiki system)
5. Euamoto (Hepburn system)
6. Iwamotou (older Romanization)
7. Iwamote (abbreviated or informal form)
8. Iiamoto (typo or mispronunciation)
9. Yewamote, Eyamote, Euamote (less common variants due to different romanization systems)

These variations are primarily due to differences in the Japanese Romanization systems and regional pronunciation variations within Japan. It's essential to consider the context when encountering these variations, as some may be typographical errors or uncommon variants.

Famous people with the last name Iwamoto

The Iwamoto surname has been associated with notable individuals across various fields. One of the most recognized is Ken Iwamoto, an American actor who played significant roles in popular films such as "The Karate Kid" and its sequels. In the realm of visual arts, Jun Kaneko, born John Iwamoto, is a prominent sculptor and ceramic artist, best known for his Dangos and Hamaguchi series. Another notable figure is Judy Iwamoto, a political activist who co-founded the Asian Law Caucus, advocating for civil rights and social justice in San Francisco's Asian American community. Lastly, Hiroshi Iwamoto, a Japanese engineer, was the recipient of the Shingo Prize for Excellence in Manufacturing and is known for his work on lean manufacturing principles.

Genealogical research on the last name Iwamoto

The Iwamoto surname is of Japanese origin, derived from the place names Iwa and Moto, signifying 'foot of Mount Iwa.' The name is predominantly found among the Japanese population, particularly those who reside in or originate from Honshu, Japan's main island.

The Iwamoto family is believed to have roots traced back to the Edo period (1603-1868), during which Japan was under a feudal system and had many distinct domains. The Iwamotos, like many Japanese families, were likely associated with specific domains, although specific lineages or historical figures within this family are not widely documented outside of Japan.

Immigrants bearing the Iwamoto surname have been recorded in significant numbers in Hawaii and other parts of the United States, following Japan's emigration wave during the late 19th and early 20th centuries. Today, the name remains relatively common among Japanese communities worldwide, particularly in Japan and North America.

Last name distribution maps

Chargement de la carte...

Sources & References

About the author :
NomOrigine Team
NomOrigine Team
Passionate about genealogy, name history, and linguistics, we have been analyzing the origins of names for over 3 years. Our content is based on verified historical, etymological, and statistical data.
Last updated : 27 July 2025

Share the origin of your last name with your friends

Search the origin of a family name

Enter the surname you are looking for below:

Similar Last Names

Iwami (Last name)

surnames > iwami

The last name "Iwami" is of Japanese origin. It likely originates from a place name, possibly referring to a location with the same name in Japan. The name may also have evolved fr...

Iwamura-trevisan (Last name)

surnames > iwamura-trevisan

Iwamura is a Japanese surname, derived from the words "iwa" meaning rock and "mura" meaning village. Trevisan is an Italian surname, originating from the place name Treviso in Ital...

Iwanczuk (Last name)

surnames > iwanczuk

The last name "Iwanczuk" is of Polish origin. It is a derivative of the first name "Iwan" or "Ivan", which is the Polish form of the name "John". The suffix "-czuk" is a common end...

Iwanicki (Last name)

surnames > iwanicki

The surname "Iwanicki" is of Polish origin. It derives from the given name Ivan (or Ivanko), which was a common Slavic name popularized by Saint Ivan of Rilski (also known as Saint...

Iwasawa (Last name)

surnames > iwasawa

The last name Iwasawa is of Japanese origin. In Japanese, the name is written as 岩沢, which means "rock stream."岩 (iwa) means "rock" and 沢 (sawa) means "stream." This name i...

Iwase (Last name)

surnames > iwase

The surname Iwase (伊abase) has origins in Japan. It is derived from a place name, which is common in the naming system traditionally used in Japan. This system often involves tak...

Iwayan (Last name)

surnames > iwayan

The last name "Iwayan" originates from Bali, Indonesia. It is a traditional Balinese name commonly used in the Hindu community.