Authors born in 1940
- A. K. Antony Politician, 1940
- Abbas Kiarostami Film Director, 1940
- Abdallah Salem el-Badri Businessman, 1940
- Abdurrahman Wahid Politician, 1940
- Abraham Foxman Lawyer, 1940
- Adam Faith Actor, 1940
- Al Jarreau Singer, 1940
- Al Pacino Actor, 1940
- Alan Cheuse Writer, 1940
- Alan Kay Computer Scientist, 1940
- Albert Eccles Bassist, 1940
- Alex Trebek Television Presenter, 1940
- Alexei Panshin Writer, 1940
- Allan Snyder Scientist, 1940
- Angela Carter Novelist, 1940
- Angela Lambert Journalist, 1940
- Angeles Arrien Anthropologist, 1940
- Anita Bryant Singer, 1940
- Anna Karina Actress, 1940
- Anne Campbell Politician, 1940
- Annie Ernaux Writer, 1940
- Anthony Fauci Scientist, 1940
- Arlie Russell Hochschild Sociologist, 1940
- Armand DiMele Psychotherapist, 1940
- Arnie Kantrowitz Activist, 1940
- Arnold Mindell Psychotherapist, 1940
- Arthur Laffer Economist, 1940
- Arthur Tress Photographer, 1940
- Astrud Gilberto Singer, 1940
- Austin Pendleton Actor, 1940
- Avis Bohlen Diplomat, 1940
- Aviva Cantor Journalist, 1940
- Avtarjeet Singh Dhanjal Sculptor, 1940
- Barbara Amiel Journalist, 1940
- Barbara Boxer Politician, 1940
- Barbara Dana Actress, 1940
- Barney Frank Politician, 1940
- Barry Corbin Television Actor, 1940
- Barry Tompkins Sportscaster, 1940
- Bennie Maupin Musician, 1940