Ramanathan
Ramanathan is a family name for the following people:
- Annamalai Ramanathan (1946–1993), Indian mathematician
- KG Ramanathan (1920–1992), Indian mathematician
- Ramkumar Ramanathan (* 1994), Indian tennis player
- S. Ramanathan (musician) (1917–1988), Indian interpreter of Carnatic music and musicologist
- S. Ramanathan (politician) (1896-1970), Indian politician and activist
- S. Ramanathan (Director) (1929-2013), Indian film director and producer
- Sellapan Ramanathan (1924-2016), President of Singapore (1999-2011)
- Veerabhadran Ramanathan (* 1944), Indian-American meteorologist and climatologist
