| Honorific Prefix: | Yang Berbahagia Dato' |
| Lye Siew Weng | |
| Native Name Lang: | zh |
| Death Date: | (aged 77) |
| Occupation: | Politician, teacher |
| Party: | Malaysian Chinese Association (MCA) |
| Otherparty: | Barisan Nasional (BN) |
| Constituency Am6: | Air Putih |
| Assembly6: | Penang State Legislative |
| Term Start6: | 21 March 2004 |
| Term End6: | 8 March 2008 |
| Predecessor6: | Constituency created |
| Successor6: | Lim Guan Eng (PR–DAP) |
| Constituency Am7: | Air Itam |
| Assembly7: | Penang State Legislative |
| Term Start7: | 1995 |
| Term End7: | 21 March 2004 |
| Predecessor7: | Ong Hock Aun (DAP) |
| Successor7: | Cheang Chee Gooi (BN–Gerakan) |
Dato' Lye Siew Weng (; born:) was a Malaysian politician. He was a member of the Penang State Legislative Assembly, representing Air Itam between 1995 and 2004, then Air Putih as well as Deputy Speaker from 2004 to 2008.
Before politics he was teacher, primary school headmaster and social worker[1]
He died of bone cancer on 28 February 2018, aged 77.[2]
| Constituency | Candidate | Votes | Pct | Opponent(s) | Votes | Pct | Ballots cast | Majority | Turnout | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | N20 Air Itam | (MCA) | 10,057 | 57.87% | Ong Hock Aun (DAP) | 7,322 | 42.13% | 2,735 | |||||||
| 1999 | (MCA) | 10,539 | 60.67% | Ong Hock Aun (DAP) | 6,831 | 39.33% | 17,721 | 3,708 | 72.52% | ||||||
| 2004 | N23 Air Putih | (MCA) | 4,811 | 55.92% | Tee Yee Cheu (DAP) | 3,793 | 44.08% | 8,779 | 818 | 71.13% | |||||