Up to 1,000 people die every year due to a shortage of organs for transplant, NHS blood and transplant said.
To register to become a donor, visit the NHS website.
You can also join when registering for a driving licence or car tax, applying for a Boots Advantage card, registering with a GP or registering for a European Health Insurance Card (EHIC).
More top news
Watch Molly's shock as her high school sweetheart Kevin pops the question as they are getting their picture taken.
Police are searching for the 'despicable' thieves who stole an elderly couple's Christmas money in a distraction robbery.
The alleged row over parking is said to have started after the local council re-paved a road in Harrow.