They are known as universal recipients.

People with type AB positive blood are called universal recipients because they can receive blood from any other bloodgroup.

Individuals with AB blood are universal recipients, meaning they can receive organs from people with other blood types.

Individuals with blood group AB are referred to as universal recipients and those with blood group O are known as universal donors.

Dogs that are DEA 1.1 positive (33 to 45% of the population) can be considered to be universal recipients - that is, they can receive blood of any type without expectation of a life-threatening Hemolytic Transfusion Reaction ("HTR").