Peter Sinclair may refer to:

Politics

Peter Sinclair (governor) Rear Admiral Peter Ross Sinclair, (born 16 November 1934) is a retired senior officer of the Royal Australian Navy who served as the 35th Governor of New South Wales from 8 August 1990 to 1 March 1996. Born in Manly, New South Wales, he was educ ...

(born 1934), Rear admiral, first commandant of ADFA, Governor of New South Wales *

Peter Sinclair Sr. Peter Sinclair (November 18, 1819 – October 9, 1906) was a Scotland, Scottish farmer and politician in Prince Edward Island. He represented Queen's County (electoral district), Queen's County in the House of Commons of Canada from 1873 to ...

(1819–1906), Canadian Member of Parliament for Queen's County, 1873–1878 *

Peter Sinclair Jr. Peter Sinclair (13 November 1887 – 8 March 1938) was a Liberal Party of Canada, Liberal party member of the House of Commons of Canada. He was born in Summerfield, Prince Edward Island and became a farmer. The son of Peter Sinclair (1819), ...

(1887–1938), Canadian Member of Parliament for Queen's, 1935–1938

Others

* Peter Sinclair (broadcaster) (1938–2001), New Zealand television personality *

Peter J. N. Sinclair Peter James Niven Sinclair (18 September 1946 – 31 March 2020)''Old Greshamian Club Address Book'' (Cheverton & Son Ltd., Cromer, 1999) p. 43 was a British economist. He was Professor, and subsequently Emeritus Professor, in Economics at t ...

(1946–2020), British economist *

Peter Sinclair (environmental activist) Peter Sinclair from Midland, Michigan (born 1953), is an environmental activist whose focus is on climate change. He is a YouTube blogger, explorer and founder of the ''ClimateCrocks.com'' website. Together with climate researchers he's traveled t ...

(born 1953), American climate and environmentalist videographer * Peter Sinclair (footballer) (born 1947), Australian football player *

Pete Sinclair (writer) Pete Sinclair is a writer who has worked on British television and radio series such as ''All Along the Watchtower'', '' Have I Got News for You'', '' Lead Balloon'', and ''Spitting Image''. Much of his writing has been in the genres of comedy and ...

, British radio and television writer {{hndis, name = Sinclair, Peter