Birthday of Scouting and Guiding founder Robert Baden-Powell and Olave Baden-Powell, and its related observance: Founder's Day or "B.-P. day" (World Organization of the Scout Movement)

Scouts' Day or Guides' Day is a generic term for special days observed by members of the Scouting movement throughout the year. Some of these days have religious significance, while others may be a simple celebration of Scouting. Typically, it is a day when all members of Scouting will re-affirm the Scout Promise.

The World Organization of the Scout Movement, branded as World Scouting since 2024, is the largest and, after the Order of World Scouts, is the second-oldest international organization in the Scout Movement, having been established in 1922. It has 176 members. These members are national scout organizations that founded WOSM or have subsequently been recognised by WOSM, which collectively have around 43 million participants. Its operational headquarters is in Kuala Lumpur, Malaysia, although it is legally based in Geneva, Switzerland.