*_World Blood Donor Day 2025_* *Why in News:* World Blood Donor Day 2025 is being observed on June 14 with the theme “Give Blood, Give Hope,” emphasizing the life-saving impact of blood donations. *Key Points:* * World Blood Donor Day is celebrated annually on June 14 to acknowledge the contributions of voluntary blood donors. * The 2025 theme, “Give Blood, Give Hope,” highlights the emotional and life-sustaining power of blood donations. * The day raises awareness about the continuous need for safe blood, particularly in post-pandemic health systems facing blood shortages. * Objectives include encouraging first-time donors, promoting regular donation habits, and strengthening community engagement. * World Blood Donor Day marks the birthday of Karl Landsteiner, who discovered the ABO blood group system, and is celebrated in over 190 countries.