| Honorific-Prefix: | Yang Berbahagia Dato' |
| Ganesan Retanam | |
| Office: | Speaker of the Perak State Legislative Assembly |
| Term Start: | 7 May 2009 |
| Term End: | 5 May 2013 |
| 1Blankname: | Menteri Besar |
| 1Namedata: | Zambry Abdul Kadir |
| 2Blankname: | Deputy |
| 2Namedata: | Hee Yit Foong |
| Predecessor: | V. Sivakumar |
| Successor: | Devamany S. Krishnasamy |
| Constituency: | Non–MLA |
| Assembly2: | Perak State Legislative |
| Constituency Am2: | Sungkai |
| Successor2: | Sivanesan Achalingam |
| Predecessor2: | Kalemuthu Veerasingam Suppiah |
| Term Start2: | 1999 |
| Term End2: | 2008 |
| Birth Place: | Perak |
| Party: | Malaysian Indian Congress |
| Otherparty: | Barisan Nasional |
| Occupation: | Politician |
Ganesan a/l Retanam, also known as R. Ganesan is a Malaysian politician from Malaysian Indian Congress. He was the Speaker of Perak State Legislative Assembly from 2009 to 2013 and Member of Perak State Legislative Assembly for Sungkai from 1999 to 2008.
On 8 May 2009, a vote of no confidence towards the by-then Speaker of the Perak State Legislative Assembly, V. Sivakumar, had been passed. Then, Barisan Nasional has nominated Ganesan to the Office of Secretary of Perak State Legislative Assembly to be the new Speaker for the Perak State Legislative Assembly and he has been chosen as the new Speaker.[1]
| Constituency | Candidate | Votes | Pct | Opponent(s) | Votes | Pct | Ballots cast | Majority | Turnout | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | N51 Sungkai | Ganesan Retanam (MIC) | 7,545 | 57.30% | Bathamanathan Rajoo (DAP) | 5,091 | 38.66% | 13,168 | 2,454 | 59.34% | |||||
| 2004 | N57 Sungkai | Ganesan Retanam (MIC) | 6,334 | 55.97% | Sivanesan Achalingam (DAP) | 4,389 | 38.79% | 11,316 | 1,945 | 64.23% | |||||