There are plenty of famous Nairs in Kerala. I will share a couple of them I know
Mohanlal
One of the most popular actors in Malayalam cinema, born into a Travancore Illam Nair family in Elanthoor, Pathanamthitta, to Viswanathan Nair and Santhakumari. His roots are from Pathanamthitta and Trivandrum districts.
Kottarakkara Sreedharan Nair
Evergreen Malayali actor born into a Nair Pillai family in Kollam in 1922 to Padinjattinkara Korattiyode Narayana Pillai and Ummini Amma. Sreedharan Nair won two Kerala state film awards, the best actor award in 1970 and the second-best actor award in 1969.
Jayabharathi
Jayabharathi is one of the most successful Malayalam film actresses of all time. She was born into a Nair Pillai family based in Kollam to Shivasankaran Pillai and Sharada.
Sandeep Unnikrishnan
An Indian Army officer born into a Kiriyathil Nair family in Kozhikode to K. Unnikrishnan and Dhanalakshmi Unnikrishnan. He served in the 51 Special Action Group of the National Security Guards and was killed in action during the November 2008 Mumbai attacks. He was posthumously awarded the Ashoka Chakra, India's highest peacetime gallantry award, on 26 January 2009.
SugathaKumari Amma
Sugathakumari was an Indian poet and activist born into a Nair Pillai family in Aranmula(Pathanamthitta) to Keshava Pillai, known as Bodheswaran, a famous Gandhian thinker and writer involved in the country's freedom struggle. Her mother was V. K. Karthiyayini Amma.
Suresh Gopi
Suresh Gopi, a popular Malayalam actor and politician, was born into a Nair Pillai family in Kollam district to K. Gopinathan Pillai and V. Gnanalekshmi Amma.
Parvathy
Evergreen Malayalam actress Parvathy, aka Ashwathy Kurup, born into a Travancore Nair Kurup family to Ramachandra Kurup and Padma Bai in Thiruvalla. Her father is from Champakulam, Alappuzha, and her mother is from Kaviyoor, Thiruvalla.
MG Ramachandran
Maruthur Gopalan Ramachandran, popularly known as M.G.R., was an Indian actor, politician, and philanthropist who served as the Chief Minister of Tamil Nadu from 1977 until his death in 1987. Born in a Menon/Mannadiar Nair family, his roots are from the Palakkad district of Kerala.
Madhu/Madhavan Nair
A Veteran Indian Actor. Madhavan Nair born into a Nair Pillai family in trivandrum to R. Parameswaran Pillai and Thankamma Pillai.
M.N. Nambiar
M.N. Nambiar was an Indian actor who worked predominantly in Tamil cinema, known mostly for his villain roles in an eight-decade-long career. Manjeri Narayanan Nambiar was born into a Nair Nambiar family in Kannur to Kelu Nambiar and Manjeri Kalyani Amma.
Shashi Tharoor
Shashi Tharoor is an Indian former international civil servant, diplomat, bureaucrat, politician, and noted writer. He has been serving as a Member of Parliament for Thiruvananthapuram, Kerala, since 2009. Shashi Tharoor was born on 9 March 1956, in London, United Kingdom, to a Nair/Menon family of Chandran Tharoor and Sulekha Menon, a Malayali couple from Palakkad district of Kerala.
Vallathol Narayana Menon
Vallathol Narayana Menon was a Malayalam poet and one of the triumvirates of modern Malayalam poetry. He was born into a Nair Menon family, the son of Kadungotte Mallisseri Damodaran and Kuttipparu Amma, in Malappuram.
Pattom A. Thanu Pillai:
2nd Chief Minister of Kerala. Pattom Thanu Pillai was born into a Nair Pillai family in Thiruvananthapuram. He was the son of Varadayyan and his wife, Eswari Amma.
Chelat Achutha Menon
4th Chief Minister of Kerala. Achutha Menon was born into a Nair Menon family in Thrissur to Madathiveettil Achutha Menon and Lekshmykutty Amma.
Padayatt Kesavapillai Vasudevan Nair
7th Chief Minister of Kerala. Nair was born into a Nair Pillai family in Kidangoor village in Kottayam, Kerala, to Kesava Pillai and Nanikutty Amma.
Erambala Krishnan Nayanar
9th Chief Minister of Kerala. Erambala Krishnan Nayanar was born into a Nayanar/Nambiar family in Kalliasseri, Kannur as the second son of Govindan Nambiar and Narayani Amma.
M. T. Vasudevan Nair
Popularly known as M.T., he is an Indian author, screenplay writer, and film director. Born into a Kiriyathil Nair family from Palakkad district to T. Narayanan Nair and Ammalu Amma.
Padmarajan
Padmarajan was known for his detailed screenwriting and expressive direction style and made some of the landmark motion pictures in Malayalam cinema. Born into a Nair Pillai family in Alappuzha to Thundathil Anantha Padmanabha Pillai and Njavarakkal Devaki Amma.
C. Sankaran Nair
A lawyer who also served as the President of the Indian National Congress in 1897 at the meeting held at Amravati. He wrote "Gandhi and Anarchy." Born into a Kiriyathil Nair family to the son of Mammayil Ramunni Panicker and Parvathy Amma Chettur in Mankara, Palakkad district.
Mayankodu Kelath Narayanan
A former Indian Police Service officer and National Security Adviser of India from 2005 to 2010. Subsequently, he served as the 19th Governor of West Bengal from 2010 to 2014. The Government of India awarded him the civilian honor of Padma Shri in 1992. Born into a Kiriyathil Nair family in Palakkad district.
Shobhana Chandrakumar Pillai, Vineeth, Onv Kurup, Anoop Menon, Swetha Menon, Adoor bhasi, Priyadarshan, chithra, lekshmi sangal and many more - the list goes on