Sir Ravinder Nath Maini (1937 - ) is rheumatology professor at the Kennedy Institute, part of Imperial College London. Maini was born in Ludhiana in the Punjab region of India but has lived most of his life in the UK. He did his bachelor's degree at Sidney Sussex College, Cambridge.
In the 1980s Maini and colleague Marc Feldmann identified TNF alpha as a key cytokine in the process of rheumatoid arthritis. Maini was awarded the Crafoord Prize in 2000. He was knighted for this work in 2003, the same year as he received the Albert Lasker Award for Clinical Medical Research. In 2008 he was awarded the Dr. Paul Janssen Award for Biomedical Research together with Marc Feldmann.