Working together. Saving lives.

This game made possible by a lifesaving organ transplant.

Brother-sister time made possible by the gift of life.

Mother-daughter time made possible by the gift of an organ transplant.

Day on the lake made possible by the gift of an organ transplant.

Partnership made possible by the gift of an organ transplant.

Organ donation advocates made possible by the gift of life.

Working together. Saving lives.

Our mission is to advance organ availability and transplantation to support patients through education, technology and policy development.

How organ matching works

Understand the basic path to donation

UNOS’ computer system stores information about every person who is waiting for a transplant, and matches donor organs with transplant candidates 24 hours a day, 365 days a year. When a patient is “added to the list,” a transplant hospital adds a patient’s medical information into UNOS’ computer system. The patient is not immediately placed on a ranked list. When a deceased organ donor is identified, UNOS’ computer system generates a ranked list of transplant candidates who are suitable to receive each organ. Factors affecting ranking may include blood type, tissue type, medical urgency, waiting time, expected benefit, geography and other criteria. Learn more >


  • You can be a donor at any age.
  • Celebrity or financial status are not factors in getting a transplant.
  • Donation is possible with many medical conditions.
  • All major religions approve of organ and tissue donation.
  • A national computer system and strict standards are in place to ensure ethical and fair distribution of organs.
  • A healthy person can become a living donor by donating a kidney, or a part of the liver, lung, intestine, blood or bone marrow.
  • Learn more organ donation facts.

Upcoming events

Wed 05

NATCO 40th Annual Meeting

August 5 - August 8
Louisville KY
Mon 17

OPTN/UNOS Kidney Committee Teleconference

August 17 @ 12:00 pm - 1:00 pm
Thu 10

OPTN/UNOS Region 2 Forum

September 10
Newark NJ
Thu 10

OPTN/UNOS Region 10 Meeting

September 10 @ 8:00 am - 5:00 pm
Dayton OH
Fri 11

OPTN/UNOS Region 2 Meeting

September 11 @ 8:00 am - 5:00 pm
Newark NJ
Tue 15

2015 AATB Annual Meeting

September 15 - September 19
Scottsdale AZ


UNOS support cited in New England Journal of Medicine study

A team of researchers report in the July 30, 2015 edition of The New England Journal of Medicine that modest body cooling of kidney donors after declaration of brain death may significantly reduce the risk of delayed graft function (need for dialysis within a week after transplantation) in recipients.

Henrisa Tosoc-Haskell named Director of Member Quality

In her senior-level position, Tosoc-Haskell will be responsible for monitoring performance of member institutions (transplant hospitals, organ procurement organizations and histocompatibility laboratories) and their compliance with OPTN policy and bylaws and the OPTN Final Rule.

Roger Brown named Director of UNOS Organ Center

As director, Brown will be responsible for the leadership and direction of all areas of the Organ Center, from overseeing daily operations, to maintaining the Organ Center’s performance metrics and quality improvement initiatives.