| Honorific-Prefix: | Yang Mulia Dato' Sri |
| Raja Ahmad Zainuddin Raja Omar | |
| Native Name: | Malay: {{Script|Arab|راج احمد زاينوددين راج عمر |
| Parliament: | Malaysian |
| Constituency Mp: | Larut |
| Predecessor: | Mohd. Zihin Mohd. Hassan |
| Successor: | Hamzah Zainudin (BN–UMNO) |
| Term Start: | 29 November 1999 |
| Term End: | 8 March 2008 |
| Assembly1: | Perak State Legislative |
| Constituency Am1: | Kubu Gajah |
| Predecessor1: | Mohd Jafri Mohd Yunus |
| Successor1: | Ahmad Hasbullah Alias |
| Term Start1: | 8 March 2008 |
| Term End1: | 5 May 2013 |
| Birth Name: | Raja Ahmad Zainuddin Raja Omar |
| Birth Date: | 1956 |
| Death Date: | (aged 61) |
| Citizenship: | Malaysian |
| Party: | UMNO |
| Otherparty: | Barisan Nasional |
| Occupation: | Politician |
Raja Ahmad Zainuddin bin Raja Omar was a Malaysian politician from UMNO. He was the Member of Parliament for Larut from 1999 to 2008 and Member of Perak State Legislative Assembly for Kubu Gajah from 2008 to 2013.
He was a blogger for Berita Harian, the Chief editor of Berita Harian Perak from 1988 to 1999 and Advisor for Mingguan Watan. He was also the Director of Ken Holdings Berhad, Muhibbah Engineering (M) Bhd and others. He was also the manager of Perak FC and Vice President of Football Association of Malaysia. He was suspended from 1991 to 1994, 2001 to 2005 and in 2006 due to criticism towards FAM.[1]
He was a member of the Perak Public Accounting Committee, Barisan Nasional Supporters Club, Chairman of Commercial Vehicle Licensing Board and Director of Tabung Haji Management Board.
He was the incumbent Chief of UMNO Larut branch and rejected Hamzah Zainuddin as a candidate for the Larut branch chief election as Hamzah joined the branch after 31 December 2007, which is a breach of UMNO's constitution. At the end, the Secretary-general of UMNO, Tengku Adnan Tengku Mansor had allowed Hamzah to participate in the election.[2]
| Constituency | Candidate | Votes | Pct. | Opponent(s) | Votes | Pct. | Ballots cast | Majority | Turnout | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1990 | N04 Batu Kurau | (UMNO) | 8,307 | 70.82% | Kamarudin Awang Basir (PAS) | 3,422 | 29.18% | 12,192 | 4,885 | 72.74% | |||||
| 1995 | N05 Batu Kurau | Raja Ahmad Zainuddin Raja Omar (UMNO) | 8,245 | 68.49% | Kamarudin Awang Basir (PAS) | 3,437 | 28.55% | 12,328 | 4,808 | 67.97% | |||||
| Mohamed Shohor Mohd Nasir (IND) | 357 | 2.97% | |||||||||||||
| 2008 | N06 Kubu Gajah | Raja Ahmad Zainuddin Raja Omar (UMNO) | 4,114 | 49.28% | Mohd Nazri Din (PAS) | 4,048 | 48.48% | 8,349 | 66 | 76.00% | |||||
| Constituency | Candidate | Votes | Pct. | Opponent(s) | Votes | Pct. | Ballots cast | Majority | Turnout | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | P053 Larut, Perak | (UMNO) | 14,334 | 56.21% | Mohd Nor Monutty (keADILan) | 10,325 | 40.49% | 25,500 | 4,009 | 71.76% | |||||
| 2004 | P056 Larut, Perak | Raja Ahmad Zainuddin Raja Omar (UMNO) | 19,064 | 60.88% | Kamarudin Awang Basir (PAS) | 11,456 | 36.58% | 31,315 | 7,608 | 78.00% | |||||
He had passed away on 9 June 2017 in Hospital KPJ Ipoh.