Seibundo Shinkosha (誠文堂新光社) is a higly prolific publisher of go books in Japan. Publication include:
- 10 volume series by Go Seigen on 21st century go,
- Go-Segoe tesuji dictionary,
- Go Reader for True 5 Dan Books series,
- Gendai no Meikyoku series
Also published the monthly go magazine Igo (圍碁) from 1951 through 2012.