Nan'yō Kōhatsu
| Industry | Strategic development |
|---|---|
| Founded | 1921 |
| Founder | Haruji Matsue |
| Fate | Disincorporated |
| Headquarters | Japan |
Area served | Micronesia and Southeast Asia |
Key people | Tokuichi Kuribayashi |
The Nan'yō Kōhatsu kabushiki gaisha (南洋興発株式会社; abbreviated to Nankō or NKKK), also known the South Seas Development Company, was a Japanese strategic development company which aimed to promote economic development and Japanese political interests in Micronesia and Southeast Asia.