National days, ongoing national weeks and months, and global observances for October 21, 2026. Plus historical events and birthdays.
October 21, 2026 celebrates Back To The Future Day, plus 8 more. Today is October 21 on the National Day Calendar and we are traveling back in time to catch a ride on the DeLorean to celebrate Back to the Future Day.
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National Apple Day falls on October 21 on the National Day Calendar as a day to celebrate all things apple! This food holiday is dedicated to growers in the UK and around the world to promote the rich cultural and historical significance of apples, as well as the importance of orchards and apple-related products in agriculture and heritage.
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On the Wednesday of the third business week in October, we celebrate the healthcare heroes who keep medical offices running: our Medical Assistants! As part of Medical Assistants Recognition Week, Medical Assistants Recognition Day is a time to honor the professionalism and compassion of these essential team members.
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On October 21, discover one of America’s first skin treatments and favorite skincare ingredients when you celebrate National Witch Hazel Day.
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Support Your Local Chamber of Commerce Day is observed annually on the third Wednesday in October. The Chamber of Commerce's primary objective is strengthening local businesses of all sizes. The best way to honor this organization is to use the services of local chamber businesses.
Read the full story →Longer-running observances that include this date.
National Domestic Violence Awareness Month
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National Book Month
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Emotional Wellness Month
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Breast Cancer Awareness Month
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National Pizza Month
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Lgbtq History Month
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Global Diversity Awareness Month
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Italian-american Heritage Month
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National Fire Prevention Month
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National Learning And Development Month
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National Arts & Humanities Month
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Health Literacy Month
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Showing the first 12 — See all months for October.
