| Wong Sio Chak | |
| Native Name Lang: | zh-mo |
| Office: | Secretary for Security of Macau |
| Term Start: | 20 December 2014 |
| 1Blankname: | Chief Executive |
| 1Namedata: | Fernando Chui Ho Iat Seng |
| Predecessor: | Cheong Kuoc Vá |
| Birth Date: | September 1968 |
| Birth Place: | Guangdong, China |
| Nationality: | People's Republic of China (Macau) |
| Residence: | Macau |
| Alma Mater: | Peking University |
| Occupation: | Civil servant |
Wong Sio Chak (; born September 1968) is a Macau politician who is the current Secretary for Security of Macau, fourth most senior government official in Macau.[1]
Wong was born in Guangdong province in September 1968. He received a bachelor's and doctorate degrees in law from Peking University.
Working at the Judicial Police, Wong was a senior technician in 1994 and judicial auditor in 1994-1995. In 1997, he was appointed prosecutor at the Prosecution Service. At the Judiciary Police, he was appointed as Deputy Director in 1998 and acting Director in 1999. He was appointed Deputy Prosecutor-General of the Public Prosecution Office in March 2000 and appointed Director of Judiciary Police in November 2000.
Wong is married with two daughters.