- Cattell, Ray Cattell, R. B. Cattell, Raymond B. Cattell, Raymond Bernard Cattell - American psychologist (born in England) who developed a broad theory of human behavior based on multivariate research (1905-1998)
--1 is a kind of psychologist
- Cattell, James McKeen Cattell - American psychologist and editor (1860-1944)
--2 is a kind of psychologist; editor, editor in chief