Quotation authors by 'K'
| Full name | Nationality | Profession |
|---|---|---|
| A. P. J. Abdul Kalam | Indian | Scientist |
| Aamir Khan | Indian | Actor |
| Aaron Klein | American | Journalist |
| Aaron Klug | British | Physicist |
| Aaron Koblin | American | Artist |
| Abbas Kiarostami | Iranian | Director |
| Abdul Qadeer Khan | Pakistani | Scientist |
| Abel Korzeniowski | Polish | Composer |
| Abraham Kuyper | Dutch | Theologian |
| Adam Kinzinger | American | Politician |
| Adam Kluger | American | Businessman |
| Adelaide Kane | Australian | Actress |
| Adhir Kalyan | South African | Actor |
| Aga Khan IV | Businessman | |
| Akhmad Kadyrov | Chechen | Statesman |
| Akira Kurosawa | Japanese | Director |
| Akshay Kumar | Indian | Actor |
| Al Kaline | American | Athlete |
| Alan Kay | American | Scientist |
| Alan Keyes | American | Politician |