Hien may refer to:
- Japanese phrases and names
- Kawasaki Ki-61 (Japanese: 飛燕), a Japanese World War II aircraft
- Getter Robot Hien (Japanese: 飛焔), an ongoing manga and fictional character
- Hien (character) (Japanese: 緋鉛), a Japanese fictional character
- Netherlands
- Hien (Netherlands), a village near Dodewaard
- Vietnamese family name
- Nguyen Thanh Hien, Vietnamese-Hungarian singer
- German family name
- Albert Hien (de) (born 1956), German artist
- Eckart Hien (de) (born 1942), German jurist
- Hans Hien (de) (1905 - 1984), German jurist