England's motto is or was Dieu et mon Droit (French for 'God and my Right').
This motto was first used by Richard I in 1198, and was adopted as the royal motto by Henry VI.
As for the motto of the UK, I know that they launched an appeal for suggestions for one back in 2007, but as yet no results.
UK Sport's motto is 'The UK's high performance sports agency'.
Alliance for Democracy - UK -'s motto is 'Working together for the people the politicians forgot'.
Spalding High School - UK -'s motto is 'Lampada Vitae Tradimus'.
British Gymnastics's motto is 'The UK National Governing Body for Gymnastics'.
The motto of Halfords is 'We go the extra mile'.
The motto of Orange - UK - is 'The future's bright...'.
Mage UK's motto is 'Our limit is your imagination'.
UK Sport's motto is 'The UK's high performance sports agency'.
Mediawatch-uk's motto is 'Campaigning for Family Values in the Media'.
The motto of Merrill College - UK - is 'Brave & Faithful'.
The motto of UK Youth Climate Coalition is 'UK Youth united for a clean, just future.'.
Alliance for Democracy - UK -'s motto is 'Working together for the people the politicians forgot'.
Spalding High School - UK -'s motto is 'Lampada Vitae Tradimus'.
The motto of Spalding High School - UK - is 'Hand on the Lamp of Life'.
Actually this is the motto of the UKs Special forces unit, the SAS
United Kingdom Accreditation Service's motto is 'Delivering confidence'.
Airport Operators Association's motto is 'The Voice of UK airports'.