While the majority of people in NSW say they support organ donation, only one in three are registered organ donors.

This DonateLife Week, which starts on Sunday, July 26, people are urged to consider donation and to join the Australian Organ Donor Register.

Last year, 1683 lives were transformed by 548 deceased and 239 living organ donors and their families.

Also during, 2019 more than 12,000 Australians benefited from eye and tissue donation.

NSW Organ and Tissue Donation Service general manager Danielle Fisher said lives have been saved and transformed thanks to the generosity of donors and their families.

"Organ and tissue donation gives people needing a transplant a second chance at life," she said.

"Registration is so important because it leaves families in no doubt of their loved one's wish to be an organ and tissue donor."

While unable to provide data on registrations in metro areas compared to regional NSW, Ms Fisher said a recent community awareness survey found people in regional areas are more likely to be registered donors.

In Australia, families will always be asked to consent to donation. When a person is registered, nine in 10 families honour the wishes of their loved ones.

"Registering is quick and easy at donatelife.gov.au. It only takes a minute with your Medicare card," Ms Fisher said.

For those who are already registered, Ms Fisher encouraged them to have the conversation with their loved ones.

"Talk to your friends, family and colleagues this DonateLife Week. Tell them you want to be a donor, and encourage them to register too," she said.

Ms Fisher said in time more people are registering for organ donation than ever before, and she acknowledged the generosity of deceased donors and their families.

In NSW, you can no longer register via your driver's licence and people will need to join the Australian Organ Donor Register.

DonateLife Week runs from July 26 to August 2 and it is the national awareness week for organ and tissue donation.