The UK government classifies the following overseas countries as majority native English speaking:
Antigua and Barbuda,Australia,The Bahamas,Barbados,Belize,Canada,Dominica,Grenada,Guyana,Ireland,Jamaica,New Zealand,St Kitts and Nevis,St Lucia,St Vincent and the Grenadines,Trinidad and Tobago,United Kingdom,United States of America
No other country may be considered as being 'majority English speaking' for UKBA purposes.