The Gulf state placed the UK on its high risk category for travel last November amid a surge in Covid-19 cases. Nine countries remain red-listed.
But, as of Monday (28 February), those with proof of full vaccination against the virus will no longer have to quarantine on arrival.
All visitors will, however, still be required to submit a negative PCR test taken within 48 hours of departure.
In a statement, Qatar Tourism said: "Visitors must register via the pre-travel registration system and upload all relevant official documents, where applicable, such as vaccination certificates, evidence of previous Covid-19 infection, serology antibody test results (for conditional vaccines), and PCR lab result, at least three days before arrival."
