Melnychuk is Ukrainian surname and a derivative of Melnyk
Alternative spellings: Melnichuk, Melnyczuk
It may refer to:
- Dmytro Melnychuk (born 1943), Ukrainian scientist
- Maksym Melnychuk (born 1999), Ukrainian football player
- Valentyn Melnychuk (born 1940), Ukrainian men's basketball coach
- Vasyl Melnychuk (born 1957), Ukrainian football referee