National Heroes' Day is a significant holiday in the Philippines, typically celebrated on the last Monday of August each year. The day is dedicated to honoring and remembering the nation's heroes who have greatly contributed to its national identity and independence. It's a public holiday across the country, meaning schools, government offices, and most businesses are closed.

The history of National Heroes' Day dates back to 1931 when the Philippine Legislature enacted Act No. 3827. It declared the last Sunday in August of every year an official national holiday, but in 2007 this was changed to the last Monday of August through Republic Act No. 9492. The holiday serves to commemorate the 'Cry of Pugad Lawin,' the start of the Philippine revolution against Spanish rule in 1896.

On National Heroes' Day, various activities take place including military parades, reenactments, concerts, and exhibitions which are often centered around historical figures and events. Shrine ceremonies and wreath-laying at monuments dedicated to national heroes are also common happenings. The highlight of the day is the national moment of remembrance, a minute of silence observed throughout the country at exactly 8 a.m.