Lek Viriyaphan | |
|---|---|
เล็ก วิริยะพันธุ์ | |
 Lek Viriyaphan at the young age | |
| Born | 1914 |
| Died | November 17, 2000 (aged 85–86) Bangkok, Thailand |
| Nationality | Thai |
| Occupation | Businessman |
| Spouse | Prapai Viriyaphan |
Lek Viriyaphan (Thai: เล็ก วิริยะพันธุ์, sometimes referred to as Khun Lek; 1914 – 17 November 2000) was an eccentric Thai businessman, millionaire and patron of culture responsible for the construction of Ancient Siam, Erawan Museum and Sanctuary of Truth.