Sujin may be:
Places
Nellikkunnam, Kottarakkara Kollam Kerala, India
People
- Emperor Sujin of Japan, traditionally said to have reigned in the 1st century B.C.
- Soo-jin, Korean unisex given name
- Sujin (สุจินต์), Thai unisex given name
- Sujin Boriharnwanaket (born 1927), Thai female Buddhist writer
- Sujin Naknayom (born 1979), Thai male footballer
Other
- An old name for the Nivaclé language of South America