Bob Hyeon Gil-su
- Title: Bob Hyeon Gil-su
- Popularity: 1.53
- Known For: Acting
- Birthday: 1951-01-25
- Place of Birth: South Korea
- Homepage:
- Also Known As: 玄吉洙, Bob Yuen, 현길수, Hyun Gil-soo, Hyun Gil-su, Kil-su Hyeon, Yuen Gat-Chue, Hyun Kill-Soo, Hyun Kil-Su, Hyeon Gil-Soo