King Huiwen of Qin, also known as Lord Huiwen of Qin, personal name Ying Si, was a king of the state of Qin during the Eastern Zhou dynasty, reigning from 338 to 311 BC. He was the first ruler of Qin to style himself "King" (王) instead of "Duke" (公).
- Position held
- Chinese sovereign
- Citizenship
- Qin
- Born
- 356 BC
- Died
- 311 BC
