A decisive vote to keep the UK's current system for electing MPs deals a further blow to Nick Clegg, after the Lib Dems suffered heavy election losses.
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Out of 440 voting areas across the UK, Yes votes made up the majority in only 10 areas.
Nick Clegg says the public's overwhelming rejection of a change in the UK voting system is a "bitter blow" but vows to "move on".
Features and analysis
Best vote change debates from Daily Politics and This Week
Five best arguments for voting Yes or No to AV
- Is AV a vote for a positive fair system...01:49
- ... or an unequal self-interested outrage?02:00
- Eddie Izzard on why he backs AV03:31
- Cameron: AV is a 'crazy system'01:56
- Voting referendum: What is AV?02:43
- AV system explained with crisps01:44
- AV: Which nations already use it?00:56
- School reporters on how AV works03:09
Matthew Elliott from the No to AV campaign gives an opposing view
Katie Ghose from Yes to Fairer Votes makes the case for change
Tory chairman: Why you should reject "crazy" AV system
Lib Dem president urges you to seize chance to change system
The general secretary of the GMB gives a union perspective
The UK Independence Party's William Dartmouth on their stance
Former Lib Dem leader on why you should vote Yes to AV
Labour MP on why you should vote No on 5 May
Dubious claims on both sides - Dr Alan Renwick
Latest election coverage from across the UK