| Election Name: | Indian general election in Tamil Nadu, 1991 |
| Country: | India |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | Indian general election in Tamil Nadu, 1989 |
| Previous Year: | 1989 |
| Next Election: | Indian general election in Tamil Nadu, 1996 |
| Next Year: | 1996 |
| Election Date: | May–June 1991 |
| Seats For Election: | 39 (of 521) seats in the Lok Sabha |
| Registered: | 39,917,777 |
| Turnout: | 25,514,736 (63.92%) 2.94% |
| Party1: | All India Anna Dravida Munnetra Kazhagam |
| Alliance1: | Congress alliance |
| Leaders Seat1: | Did not contest |
| Seats1: | 39 |
| Seat Change1: | 1 |
| Popular Vote1: | 14,981,111 |
| Percentage1: | 60.67% |
| Swing1: | 3.69% |
| Leader2: | M. Karunanidhi |
| Leaders Seat2: | Did not contest |
| Party2: | Dravida Munnetra Kazhagam |
| Alliance2: | National Front |
| Seats2: | 0 |
| Seat Change2: | 1 |
| Popular Vote2: | 6,823,581 |
| Percentage2: | 27.64% |
| Swing2: | 2.48% |
| Map Size: | 200px |
| After Party: | Indian National Congress |
The 1991 Indian general election polls in Tamil Nadu were held for 39 seats in the state. The result was a repeat landslide victory for Indian National Congress, and its ally All India Anna Dravida Munnetra Kazhagam, winning all 39 seats. The opposition party Dravida Munnetra Kazhagam, which was part of the National Front, lost heavily, not winning a single seat. During this election, Rajiv Gandhi was assassinated, when campaigning for Margatham Chandrasekar for the Indian National Congress, in the Sriperumbudur constituency.
| Alliance | Party | align=centre | Popular Vote | align=centre | Percentage | align=centre | Swing | align=centre | Seats won | align=centre | Seat Change | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AIADMK+ | Indian National Congress | 10,510,569 | 42.57% | 2.71% | 28 | 1 | |||||||
| All India Anna Dravida Munnetra Kazhagam | 4,470,542 | 18.10% | 0.98% | 11 | |||||||||
| Total | 14,981,111 | 60.67% | 3.69% | 39 | 1 | ||||||||
| National Front | Dravida Munnetra Kazhagam | 5,601,597 | 22.69% | 3.97% | 0 | ||||||||
| Janata Dal | 718,222 | 2.91% | 1.49% | 0 | |||||||||
| Communist Party of India | 503,762 | 2.04% | 0 | 1 | |||||||||
| Total | 6,823,581 | 27.64% | 2.48% | 0 | 1 | ||||||||
| Pattali Makkal Katchi | 1,269,690 | 5.14% | 0.68% | 0 | |||||||||
| Independents | 353,719 | 1.43% | 0.84% | 0 | |||||||||
| Other Parties (16 parties) | 1,264,233 | 5.12% | 0.31% | 0 | |||||||||
| Total | 24,692,334 | 100.00% | 39 | ||||||||||
| Valid Votes | 24,692,334 | 96.78% | |||||||||||
| Invalid Votes | 822,402 | 3.22% | |||||||||||
| Total Votes | 25,514,736 | 100.00% | |||||||||||
| Reigstered Voters/Turnout | 39,917,777 | 63.92% | 2.94% | ||||||||||
| No. | Portrait | Name | Elected constituency | Portfolio | Term in office | Political party | |||
|---|---|---|---|---|---|---|---|---|---|
| Assumed office | Left office | Time in office | |||||||
| 1 | P. Chidambaram (1945–) | Sivaganga | Ministry of Commerce | 21 June 1991 | 9 July 1992 | 2 years, 71 days | Indian National Congress | rowspan=3 | |
| 10 February 1995 | 3 April 1996 | ||||||||
| 2 | Valappaddy K. Ramamurthy (1940–2002) | Krishnagiri | Ministry of Labour | 21 June 1991 | 30 July 1991 | 39 days | |||
| No. | Portrait | Name | Elected constituency | Portfolio | Term in office | Political party | Cabinet Minister | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Assumed office | Left office | Time in office | ||||||||
| 1 | M. Arunachalam (1944–2004) | Tenkasi | Ministry of Urban Development | 21 June 1991 | 18 January 1993 | Indian National Congress | Sheila Kaul | rowspan=6 | ||
| Ministry of Small Scale Industries and Agro Industries | 18 January 1993 | 3 April 1996 | K. Karunakaran | |||||||
| 2 | Rangarajan Kumaramangalam (1952–2000) | Salem | Ministry of Parliamentary Affairs | 21 June 1991 | 2 July 1992 | 1 year, 11 days | Ghulam Nabi Azad | |||
| Ministry of Law and Justice and Company Affairs | Kotla Vijaya Bhaskara Reddy | |||||||||
| Ministry of Science and Technology | 2 July 1992 | 2 December 1993 | 1 year, 153 days | P. V. Narasimha Rao | ||||||
| Ministry of Parliamentary Affairs | Ghulam Nabi Azad----Vidya Charan Shukla | |||||||||