Avadai Dhanam Lakshimi (1925 – April 18, 2005) was a Singaporean former politician who served as the Member of Parliament (MP) representing Moulmein SMC from 1963 to 1968 and the 3rd First Lady of Singapore as the Spouse of the president of Singapore, Devan Nair, President from 1981 to 1985.

[1] During her political career, she and her husband served as Members of Parliament (MP) in two different countries, with Devan Nair serving as the People Action Party's sole MP in the Malaysian Parliament for Bungsar Constituency until 1969.

Dhanam was elected as the Member of Parliament (MP) for Moulmein SMC in 1963, representing the People's Action Party.

[4] During her tenure, she was known for her advocacy in Singapore's Public Health Service, launching an X-Ray campaign in her constituency, in order to combat tuberculosis.

[6] After Devan Nair's resignation, Dhanam and her husband migrated first to the United States in 1988 where they settled in Gaithersburg, Maryland.