Manali Kallat Vainu Bappu (10 August 1927 – 19 August 1982) was an Indian astronomer and president of the International Astronomical Union.
Bappu helped establish several astronomical institutions in India——including the Vainu Bappu Observatory named after him—and also contributed to the establishment of the modern Indian Institute of Astrophysics.
In 1957, he discovered the Wilson-Bappu effect jointly with American astronomer Olin Chaddock Wilson.