Fun Facts About the Name Kaisei
- 137 babies named Kaisei: U.S. records list 137 babies given the name Kaisei from 1880 through 2025.
What Does the Name Kaisei Mean?
Kaisei is a Japanese given name, and its meaning depends on the kanji characters chosen to write it rather than on the sound alone. Kaisei uses Sino-Japanese on readings, so the same pronunciation can carry different senses. Possible writings include 快晴 (kai "pleasant, cheerful" + sei "clear, sunny"), a standard noun meaning "clear weather" or "fine weather"; 海星 (kai "sea" + sei "star"), literally "sea star," the Chinese word for starfish (the everyday Japanese word is usually hitode); and 魁星 (kai "chief, foremost" + sei "star"), a Chinese-derived term for the star deity of literature and examinations. Other combinations, such as 開 (open) with 誠 (sincerity), are also possible. The literal sense of each writing is not the same as a later symbolic meaning: 魁星 literally means "chief star," while its religious and examination associations come from Chinese star lore.
Kaisei Name History & Origins
Kaisei is formed from the Sino-Japanese on readings kai and sei, the layer of Japanese vocabulary borrowed from Chinese along with the kanji. As a given name, Kaisei is not a fixed word but a reading pattern that can be filled by different kanji. The star element 星 appears in 海星 and 魁星. 魁星 is also the Japanese reading of Kuíxīng, a Chinese deity of literature and examinations, a figure known in Japan through Chinese texts and religious traditions; that association is separate from the literal meaning "chief star." The element 晴 ("clear") appears in 快晴, the ordinary Japanese noun for clear weather.
How Popular is the Name Kaisei?
Kaisei has historically been an exceptionally rare given name in the United States, remaining well outside the national mainstream. It saw its highest recorded annual births in 2007. Its best rank was #7,881 in 2007.
U.S. name popularity from 1880-2025, based on SSA data. Rank shows how the name compares with other names - lower numbers mean greater popularity. Births shows how many babies received the name each year.
| Year | Rank | Births | % |
|---|---|---|---|
| 2025 | #11,319 | 6 | 0.0004% |
| 2024 | #8,626 | 9 | 0.0005% |
| 2023 | #11,506 | 6 | 0.0004% |
| 2022 | #10,319 | 7 | 0.0004% |
| 2021 | #11,423 | 6 | 0.0003% |
| 2019 | #8,517 | 9 | 0.0005% |
| 2018 | #13,135 | 5 | 0.0003% |
| 2017 | #8,492 | 9 | 0.0005% |
| 2016 | #11,421 | 6 | 0.0003% |
| 2015 | #10,072 | 7 | 0.0004% |
| 2014 | #8,465 | 9 | 0.0005% |
| 2013 | #8,447 | 9 | 0.0005% |
| 2012 | #10,248 | 7 | 0.0004% |
| 2010 | #8,451 | 9 | 0.0005% |
| 2009 | #10,422 | 7 | 0.0004% |
| 2008 | #13,565 | 5 | 0.0002% |
| 2007 | #7,881 | 10 | 0.0005% |
| 2006 | #11,337 | 6 | 0.0003% |
| 2005 | #12,366 | 5 | 0.0003% |
Name popularity over more than a century, based on Social Security Administration data. Gaps in the chart indicate years when the name does not appear in the published records.
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How the Name Kaisei Shapes Your Personality and Life?
EXTREMES in fortune, health and spirituality. You are very versatile, idealistic and intuitive. You either enjoy great success or suffer abject misery. The solution is service to others. Use your leadership abilities for humanity and not for self-glorification. You are bold, independent, inquisitive and interested in research. You know what you want and why you want it.
You desire to inspire and lead, to control other's affairs. You are giving, courageous and bold, action oriented,energetic and strong willed. You want to make a difference in the world, and this attitude often attracts you to cultural interests, politics, social issues, and the cultivation of your creative talents.
✦ Kaisei's Deeper Meaning & Tips for Parents Discover Kaisei's symbolic numbers and practical tips for choosing a name that complements your child's birth date.