| Shanmughasundaram Mohan | |
| Office: | Judge of the Supreme Court of India |
| Term Start: | 7 October 1991 |
| Term End: | 11 February 1995 |
| Office2: | Chief Justice of the Madras High Court |
| Termstart2: | 19 October 1989 |
| Termend2: | 26 October 1989 |
| Office3: | Acting Chief Justice of the Madras High Court |
| Termstart3: | 13 December 1988 |
| Termend3: | 18 October 1989 |
| Office4: | Chief Justice of the Karnataka High Court |
| Termstart4: | 26 October 1989 |
| Termend4: | 6 October 1991 |
| Office5: | Judge of the Madras High Court |
| Termstart5: | 1 August 1975 |
| Termend5: | 12 December 1988 |
| Office6: | Additional Judge of the Madras High Court |
| Termstart6: | February 1974 |
| Termend6: | 31 July 1975 |
| Office7: | Acting Governor of Karnataka |
| Termstart7: | 5 February 1990 |
| Termend7: | 8 May 1990 |
| Alma Mater: | Presidency College, Madras, Madras University |
| Birth Date: | 1930 2, df=yes |
| Birth Place: | Udumalpet, Coimbatore district, British India |
| Death Place: | Chennai, Tamil Nadu, India |
Shanmughasundaram Mohan (11 February 1930 – 27 December 2019) was former judge of the India Supreme Court and former acting governor of Karnataka state. He authored 11 books in English and seven books in Tamil.
Shanmughasundaram Mohan was born in Udumalpet of Coimbatore district on 11 February 1930. After completing graduation from Presidency College Madras, he did his bachelor's degree in law from University of Madras and Masters in Constitution and International Law.[1] Enrolled as advocate in the High Court of Madras in August 1954, he became government pleader in 1969.[1] From 1956 to 1966, Mohan served as a part-time lecturer in Law College, Madras.
He was appointed Advocate General of Madras in 1971.[1] In February 1974, he was appointed additional judge of Madras High Court and became permanent Judge on 1 August 1975.[1] He was appointed Chief Justice of the Karnataka High Court on 19 October 1989, became Supreme Court Justice on 7 October 1991 and retired from the service on 10 February 1995.
In the wake of removal of Pendekanti Venkatasubbaiah in 1990, he served as Acting Governor of Karnataka state from 5 February 1990 to 8 May 1990.[1]
After retirement Justice Mohan was appointed chairman of the National Cyber Safety and Security Standards and Chairman of Pay Revision Committee of Public Sector Undertakings, Government of India. In 2004, he was appointed by the Madras High Court to ensure free and fair elections in the BCCI.
He died on 27 December 2019 at Chennai, Tamil Nadu.[2]
Mohan has authored 11 books in English on varied subjects and seven books in Tamil including a collections of poems.[3] He served as the president of the World Academy of Arts and Culture and was the president of the World Congress of Poets for six years during 2004–2010.[4] Justice Triumphs, Wild Blooms, Random Reflections, His Many Splendored Gem and Law and Social Justice are some of the books he wrote in English language.