Top 17 Fraternities in Japan
This curated ranking covers the 17 largest fraternities in Japan, ordered by estimated audience size from Rascasse's anonymized search-behavior signals. Tau Beta Sigma, Alpha Gamma Delta and Tau Kappa Epsilon lead the list with a combined estimated audience of 4,634,328 people. Across all 17 entries the average audience size is 275,996, and the largest, Tau Beta Sigma, reaches around 4,512,391 people in Japan. Audience size is the estimated number of unique people in Japan who actively engage with each fraternity, derived from search demand signals. Rankings reflect search-behavior signals collected across Japan and are refreshed weekly.
Ranking
| Rank | Name | Audience size | Country share | Subtype | Category |
|---|---|---|---|---|---|
| 1 |  Tau Beta Sigma |
4,512,391 | 59.3% | Fraternity | Business & Career |
| 2 |  Alpha Gamma Delta |
68,531 | 9.3% | Fraternity | Business & Career |
| 3 |  Tau Kappa Epsilon |
53,406 | 8.6% | Fraternity | Business & Career |
| 4 |  Tau Beta Pi |
19,394 | 11.9% | Fraternity | Business & Career |
| 5 |  Zeta Tau Alpha |
12,814 | 2.0% | Fraternity | Business & Career |
| 6 |  Kappa Sigma |
12,759 | 2.9% | Fraternity | Business & Career |
| 7 |  Sigma Chi |
4,002 | 0.7% | Fraternity | Business & Career |
| 8 |  Alpha Omicron Pi |
1,623 | 0.4% | Fraternity | Business & Career |
| 9 |  Chi Omega |
1,532 | 0.2% | Fraternity | Business & Career |
| 10 |  Alpha Phi Alpha |
1,260 | 0.2% | Fraternity | Business & Career |
| 11 |  Kappa Alpha Psi |
1,050 | 0.3% | Fraternity | Business & Career |
| 12 |  Alpha Chi Omega |
820 | 0.2% | Fraternity | Business & Career |
| 13 |  Pi Beta Phi |
792 | 0.2% | Fraternity | Business & Career |
| 14 |  Sigma Nu |
722 | 0.2% | Fraternity | Business & Career |
| 15 |  Lambda Chi Alpha |
455 | 0.2% | Fraternity | Business & Career |
| 16 |  Alpha Xi Delta |
338 | 0.1% | Fraternity | Business & Career |
| 17 |  Tau Delta Phi |
50 | 0.6% | Fraternity | Business & Career |
Frequently asked questions
How is this Top 17 list compiled?
Rascasse aggregates anonymized search-behavior signals across Japan and ranks each fraternity by its estimated audience size. Only entries with at least 5 measured entities are listed.
How often is the list updated?
The ranking is refreshed weekly from the latest search-behavior data and re-published as a static page.
What is the largest fraternity in Japan?
Tau Beta Sigma currently leads with an estimated audience of 4,512,391 people in Japan.
Methodology
Audience sizes are estimated from anonymized search-behavior signals across Japan. Lists below 5 entries are not published. See methodology for full details.