Frederick Norman Ambler OBE JP (28 February 1894 – 1983) was a pioneering New Zealand businessman in the clothing trade and a long serving local-body politician.

A clothing manufacturer, it used mass production methods for the first time in New Zealand following a trip by Ambler to Canada where he brought back more modern machinery.

The company was to make its name initially by producing men's pyjamas and distinguished itself with its slogan "No one ever regretted buying quality" (which is still used to this day).

[2] He was involved in an early "buy New Zealand-made" advertising campaign and was a member of the Manufacturers Association, serving as its President in 1940–42.

[6] Ambler spearheaded the addition of potted palms to beautify inner-city street sides and the planning of Auckland's civic complex.

[2] He served for many years as chairman of the Parks and Library committee and in 1957 he was appointed deputy-mayor following the election of Keith Buttle to the mayoralty.

[8] As a member of the drainage board he became opposed to mayor John Allum's proposal to discharge Auckland's sewage into Waitemata Harbour, known as the 'Brown's Island' scheme and worked together, first with Labour Party councillor Bill Butler and then with Dove-Myer Robinson and the United Independents group to block the proposal.