The main source of information for suicide in England & Wales is ONS. You will see different figures quoted for ‘suicide’ and for undetermined death; it is standard practice to include both these figures as it is understood that many ‘undetermined deaths’ are suicide, but not written as such for a wide variety of reasons.
You can find out statistics for Scotland and Northern Ireland from GRO and NISRA.
You can read various suicide and mortality statistics for the UK below:
Suicide statistics UK 1981 – 2011
Suicide around the world by gender
Government Suicide Strategy Impact Assessment 2011
