| Hasnul Baharuddin | |
| Native Name: | Malay: {{Script|Arab|حسن البحرالدين |
| Birth Name: | Hasnul bin Baharuddin |
| Birth Place: | Selangor, Malaysia |
| Office: | Deputy Speaker of the Selangor State Legislative Assembly |
| 1Blankname: | Menteri Besar |
| 1Namedata: | Amirudin Shari |
| 2Blankname: | Speaker |
| 2Namedata: | Ng Suee Lim |
| Term Start: | 13 July 2020 |
| Term End: | 23 June 2023 |
| Predecessor: | Daroyah Alwi |
| Successor: | Mohd Kamri Kamaruddin |
| Constituency: | Morib |
| Constituency Am1: | Morib |
| Assembly1: | Selangor State Legislative |
| Term Start1: | 5 May 2013 |
| Term End1: | 12 August 2023 |
| Predecessor1: | Hasiman Sidom (BN–UMNO) |
| Successor1: | Rosnizan Ahmad (PN–BERSATU) |
| Majority1: | 766 (2013) 2,117 (2018) |
| Party: | Malaysian Islamic Party (PAS) National Trust Party (AMANAH) |
| Otherparty: | Pakatan Rakyat (PR) Pakatan Harapan (PH) |
| Occupation: | Politician |
Hasnul bin Baharuddin is a Malaysian politician who served as Deputy Speaker of the Selangor State Legislative Assembly from July 2020 to June 2023 and Member of the Assembly (MLA) for Morib from May 2013 to August 2023. He is a member of the National Trust Party (AMANAH), a component party of the Pakatan Harapan (PH) coalition and was a member of the Malaysian Islamic Party (PAS), a component party of formerly the Pakatan Rakyat (PR) coalition.
| Constituency | Candidate | Votes | Pct | Opponent(s) | Votes | Pct | Ballots cast | Majority | Turnout | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2004 | N53 Morib | Hasnul Baharuddin (PAS) | 5,361 | 29.98% | (UMNO) | 12,523 | 70.02% | 17,884 | 7,162 | 75.86% | ||||
| 2013 | (PAS) | 15,016 | 51.31% | Hasiman Sidom (UMNO) | 14,250 | 48.69% | 29,746 | 766 | 88.80% | |||||
| 2018 | Hasnul Baharuddin (AMANAH) | 11,000 | 40.43% | Rozana Kamarulzaman (UMNO) | 8,883 | 32.64% | 27,650 | 2,117 | 86.60% | |||||
| Mohammad Sallehuddin Hafiz (PAS) | 7,328 | 26.93% | ||||||||||||
| 2023 | Hasnul Baharuddin (AMANAH) | 15,093 | 44.35% | bgcolor= | (BERSATU) | 18,936 | 55.65% | 34,217 | 3,843 | 78.07% | ||||