Peter Collinson

Peter Collinson may refer to:


 * Peter Collinson (botanist) (1694–1768), English scientist and horticulturalist
 * Peter Collinson (film director) (1936–1980), film director
 * Pseudonym used by Dashiell Hammett, derived from commonly used stage name 'Peter Collins' meaning 'nobody', Peter Collinson therefore meaning 'Nobody's Son'