| Chui Sai Cheong | |
| Native Name Lang: | zh-hant |
| Honorific-Suffix: | OMP |
| Office: | Vice-President of the Legislative Assembly |
| Term Start: | 16 October 2017 |
| President: | Lau Cheok Va |
| Predecessor: | Lau Cheok Va |
| Office1: | First Secretary of the Legislative Assembly |
| Term Start1: | 15 October 2009 |
| Term End1: | 16 October 2017 |
| Predecessor1: | Leonel Alberto Alves |
| Successor1: | Kou Hoi In |
| Office2: | Member of the Legislative Assembly |
| Constituency2: | Business (FC) |
| Term Start2: | 20 December 1999 |
| Nationality: | China |
| Birth Date: | 1954 2, df=y |
| Birth Place: | Macau |
Chui Sai Cheong (; born 19 February 1954 in Macau[1]) is a member and the First Secretary of the Legislative Assembly of Macau. He is the older brother of Fernando Chui the former Chief Executive of Macau and cousin of José Chui also a member of the Legislative Assembly.
| Year | Candidate | Hare quota | Mandate | List Votes | List Pct | |
|---|---|---|---|---|---|---|
| 1999 | (OMCY) | uncontested | FC - Professional | uncontested | ∅ | |
| 2001 | (OMCY) | uncontested | FC - Professional | uncontested | ∅ | |
| 2005 | (OMCY) | walkover | FC - Professional | walkover | ∅ | |
| 2009 | (OMCY) | walkover | FC - Professional | walkover | ∅ | |
| 2017 | (OMCY) | 170.5 | FC - Professional | 341 | 62.45% |