Nanjil K. Manoharan (February 1929 – 1 August 2000) was an Indian politician and former Member of the Legislative Assembly of Tamil Nadu. He was Tamil Nadu's minister of Finance during 1977–1980 and minister of Revenue during 1996–2000.^[1]

Manoharan was born in Nagercoil in February 1929. He died of cardiac arrest at the age of 71 on 1 August 2000 in Chennai. He was survived by his wife, two sons and two daughters.^[1]

• He was elected to the Tamil Nadu legislative assembly four times, in 1977,^[2] 1984,^[3] 1989^[4] and 1996.^[5][6][7]
• He was elected to the Indian Parliament three times (in 1962, 67 and 71).^[8][9][10]
• He was a member of the Dravida Munnetra Kazhagam (DMK) till 1974
• Then he joined the Anna Dravida Munnetra Kazhagam (ADMK). He served as Finance minister in the M. G. Ramachandran (MGR) cabinet during 1977–80.
• He returned to the DMK in 1980 and became its Deputy General Secretary. He was a good speaker and poetry writer. He was the Revenue minister in the M. Karunanidhi cabinet during 1989–1991 and 1996–2000.^[1]