Hugh Campbell Templeton QSO AO (born 24 March 1929) is a former New Zealand diplomat, politician and member of parliament for the National Party.

[5] From 1972 to 1975, after losing his parliamentary seat, he was executive assistant to the Leaders of the Opposition (first Jack Marshall and then Robert Muldoon).

His friend and diplomatic colleague Chris Beeby commented on Templeton's election losses "It must take a very special kind of talent to fuck up two blue-ribbon seats.

"[8] In contrast, former attorney-general Chris Finlayson said that Templeton was "...a fine MP and Minister, whose contribution to this country has never been properly recognised.

Templeton also worked with the Prime Minister on stimulating New Zealand's onshore petroleum programme as part of Think Big.