How it is written
서 徐 Seo
Rank and people
Rank 15 in South Korea in the 2015 census: 752,233 people carry the surname in hangul, 1.51% of the Korean nationals counted.
Hanja spellings
The surname 서 can be written with more than one hanja.
徐 751,704 people write it with this hanja
- 徐 gradually, slowly, deliberately
西 125 people write it with this hanja
- 西 west, Spain
書 13 people write it with this hanja
- 書 write
緖 8 people write it with this hanja
- 緖 end of thread, thread, clue
Hanja meanings and Korean readings: KANJIDIC2.
Romanization and spellings
Revised Romanization: Seo. McCune-Reischauer: Sŏ. Other spellings: Suh, Su, Sur, So, Sea
Next in the ranking
The full list
Sources and credits
- Ranking, population and share: Statistics Korea, 2015 census, 성씨·본관별 인구(5인 이상) - 전국 (population by surname and clan, nationwide), KOSIS table DT_1IN15SD.
- Romanization and spellings: English Wikipedia, "List of Korean surnames", revision 1373629782, by its contributors, licensed under CC BY-SA 4.0. Changes: table reformatted and joined with Statistics Korea and EDRDG data.
- Hanja meanings: KANJIDIC2 (version 2026-272) from the Electronic Dictionary Research and Development Group, licensed under CC BY-SA 4.0. The EDRDG acknowledgement is at the foot of the page.
- Audio: synthetic speech from Google Cloud Text-to-Speech. See the about page.