Important DaysArticle 6 of 13

World Blood Donor Day observed on June 14

Monday, 15 June 2026· 5 min read·Source: World Health Organization

World Blood Donor Day (WBDD) was observed on June 14, 2026, to thank voluntary, unpaid blood donors and raise global awareness about the need for safe blood and blood products. Led by the World Health Organization (WHO), the day encourages more people to donate regularly to ensure adequate, safe blood supplies for patients needing transfusions — including those with thalassaemia, accident victims, and mothers during childbirth. The date marks the birth anniversary of Karl Landsteiner, the scientist who discovered the ABO blood group system.

Key Facts & Details

8 points

1
World Blood Donor Day is observed on June 14.
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It thanks voluntary, unpaid blood donors and promotes safe blood.
3
It is led by the World Health Organization (WHO).
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The date marks the birthday of Karl Landsteiner, discoverer of the ABO blood groups.
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It highlights the need for regular donation to maintain safe blood supplies.

Deep Dive

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Karl Landsteiner won the Nobel Prize for discovering the ABO blood group system.
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Voluntary, unpaid donation is considered the safest basis for a blood supply.
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Blood is essential for surgeries, trauma care, childbirth and treating blood disorders.

Exam Focus

On which date is World Blood Donor Day observed, and whose birth anniversary does it mark?

Exam Relevance & Angle

Important-day awareness is reliable GA, with the date (June 14), the lead body (WHO) and the Karl Landsteiner link being common questions.

Target Exams

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Background & Context

World Blood Donor Day (WBDD) is observed annually on June 14, established by the World Health Organization (WHO) in 2004 (with partners like the International Federation of Red Cross and Red Crescent Societies). The date honours the birthday of Karl Landsteiner (born 14 June 1868), the Austrian scientist who discovered the ABO blood group system and won the Nobel Prize in 1930. The day promotes voluntary, non-remunerated blood donation as the safest source of blood, and each year carries a theme to spur action on ensuring universal access to safe blood transfusion.