Monday
October 21
17 holidays and observances fall on this day.
International Day of the Nacho
International Day of the Nacho, celebrated annually on October 21st, is a tribute to the snack that has captured the hearts of people worldwide.
International Adjust your Chair Day
International Adjust Your Chair Day encourages people to optimize their seating and posture to support comfort, health, and productivity.
Overseas Chinese (Taiwan) Day
Overseas Chinese Day on October 21 honours diaspora Chinese connected to Taiwan and their cultural heritage.
Global Iodine Deficiency Disorders Prevention Day
Global Iodine Deficiency Disorders Prevention Day on October 21 raises awareness of iodine’s vital role in health and development.
International Infection Prevention Week
International Infection Prevention Week raises awareness about stopping infections. Learn its history, importance, and ways to celebrate in October.
Back to the Future Day
Back to the Future Day celebrates the date when Marty McFly and Doc Brown reach the future, revisiting imagination, tech predictions, and fandom.
National Apple Day
National Apple Day (October 21) is a celebration of apple diversity, orchards, and cultural connection through food.
National Reptile Day
National Reptile Day on October 21 celebrates and educates about reptiles and their vital role in nature.
National Pets for Veterans Day
National Pets for Veterans Day on October 21 honours veterans and the healing power of pets.
Babbling Day
Babbling Day on October 21 celebrates saying, listening and connecting through free‑flowing conversation.
National Clean Your Virtual Desktop Day
National Clean Your Virtual Desktop Day is a fun reminder to tidy your digital space and organize your files for a cleaner, faster experience.
Celebration of the Mind Day
Celebration of the Mind Day on October 21 celebrates playful thinking, puzzles and curiosity.
National Pumpkin Cheesecake Day
National Pumpkin Cheesecake Day (October 21) celebrates the rich fusion of cheesecake and pumpkin in seasonal dessert form.
National Witch Hazel Day
National Witch Hazel Day on October 21 honours the plant’s role in natural care and invites thoughtful wellness.
Count Your Buttons Day
Count Your Buttons Day on October 21 is a fun reminder to notice and appreciate the tiny things that keep life together.
National Check Your Meds Day
National Check Your Meds Day on October 21 encourages reviewing medications to improve safety and health awareness.
Garbanzo Bean Day
Garbanzo Bean Day on October 21 celebrates the nutritious and versatile garbanzo bean and invites creativity in how we eat and cook it.
Coming up next
International Stuttering Awareness Day
International Stuttering Awareness Day raises awareness of stuttering, supports those who stutter and promotes inclusive communication.
National Nut Day
National Nut Day (October 22) celebrates the health, flavour and global story of nuts—encouraging smarter snacking and food appreciation.
National Make a Dog’s Day
National Make a Dog’s Day is all about showing extra love to your dog and supporting shelter dogs still waiting for a home.
Clean Up the Earth Day
Clean Up the Earth Day invites everyone to take action - clean a space, collect litter, and build lasting habits toward a cleaner, healthier environment.
Eat a Pretzel Day
Eat a Pretzel Day on October 22 is a fun excuse to enjoy a salty snack and appreciate the simple pleasure of pretzels.
National Knee Day
National Knee Day celebrates the joint that keeps us moving—our knees—and encourages reflection on mobility, and everyday movement.
Wombat Day
Wombat Day celebrates the unique marsupial wombat and invites us to learn about, appreciate and protect these fascinating animals.
National Color Day
National Color Day celebrates the power of color in our lives, encouraging creativity, mindfulness, and a fresh look at the world around us.
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