April 1
- April Fools’ Day
- International Pillow Fight Day
- National Fun Day
- National Greeting Card Day
- National Handmade Day
- National Sourdough Bread Day
April 2
- Geologists Day
- International Children’s Book Day
- National DIY Day
- National Ferret Day
- National Peanut Butter and Jelly Day
- Nature Day
- Palm Sunday
- World Autism Awareness Day
April 3
- National Chocolate Mousse Day
- National Find a Rainbow Day
- National Inspiring Joy Day
April 4
- International Carrot Day
- Burrito Day
- National Cordon Bleu Day
- National School Librarian Day
- National Vitamin C Day
April 5
- Bell Bottoms Day
- National Caramel Day
- National Dandelion Day
- National Deep Dish Pizza Day
- National Self Care Day
- National Walking Day
- Passover (starts at sundown)
- Peeps Day
April 6
- California Poppy Day
- Hostess Twinkie Day
- National Açaí Bowl Day
- National Burrito Day
- National Caramel Popcorn Day
- National Library Day
- National Pajama Day
- National Student Athlete Day
April 7
- Good Friday
- National Coffee Cake Day
- National Pet Health Insurance Day
- Public Television Day
- Walk to Work Day
April 8
- International Feng Shui Awareness Day
- National Zoo Lovers Day
April 9
- Easter
- National Baked Ham with Pineapple Day
- National Cherish an Antique Day
- National Unicorn Day
April 10
- Golfer’s Day
- National Encourage a Young Writer Day
- National Farm Animals Day
- National Hug Your Dog Day
- National Siblings Day
April 11
- Dog Therapy Appreciation Day
- National Cheese Fondue Day
- National Pet Day
April 12
- Hamster Day
- National Grilled Cheese Sandwich Day
April 13
- Celebrate Teen Literature Day
- International Plant Appreciation Day
- Passover ends at nightfall
- National Peach Cobbler Day
- National Scrabble Day
April 14
- International Kids Yoga Day
- National Dolphin Day
- National Donate a Book Day
- National Gardening Day
- National Pecan Day
April 15
- National ASL Day
- National Glazed Spiral Ham Day
- Record Store Day
April 16
- Good Deeds Day
- National Eggs Benedict Day
- National Orchid Day
- Save the Elephant Day
April 17
- Go Fly a Kite Day
- International Bat Appreciation Day
- International Haiku Poetry Day
- National Cheese Ball Day
April 18
- Adult Autism Awareness Day
- National Animal Crackers Day
- National Exercise Day
April 19
- National Banana Day
- National Dog Parent Appreciation Day
- National Garlic Day
April 20
- National Cheddar Fries Day
- National Pineapple Upside-Down Cake Day
April 21
- National Chickpea Day
- National Tea Day
- World Creativity and Innovation Day
April 22
- Earth Day
- National Jelly Bean Day
April 23
- National Cherry Cheesecake Day
- National English Muffin Day
- National Lost Dogs Awareness Day
- National Picnic Day
- Shakespeare Day
- World Book Day
- World Table Tennis Day
April 24
- National Pigs in a Blanket Day
April 25
- National Mani-Pedi Day
- National Plumbers Day
- National Zucchini Bread Day
- School Bus Drivers’ Day
- World Penguin Day
April 26
- Administrative Professionals Day
- Denim Day
- Get Organized Day
- International Guide Dog Day
- National Pretzel Day
- World Stationery Day
April 27
- Marine Mammal Rescue Day
- National Tell A Story Day
- Take Our Daughters and Sons to Work Day
- World Design Day
April 28
- Arbor Day
- Global Pay It Forward Day
- National Blueberry Pie Day
- Stop Food Waste Day
April 29
- Indie Bookstore Day
- International Astronomy Day
- International Dance Day
- World Veterinary Day
April 30
- International Jazz Day
- National Adopt A Shelter Pet Day
- National Bubble Tea Day
- National Oatmeal Cookie Day
- National Raisin Day
- National Therapy Animal Day
- National Tie Dye Day
Weekly observances in April 2023
- April 1 to 7: Be Kind to Spiders Week
- April 2 to 8: Holy Week
- April 3 to 9: National Public Health Week
- April 8 to 16: National Robotics Week
- April 4 to 8: National Wildlife Week
- April 14 to 23: National Dance Week
- April 23 to 29: National Library Week
Monthly observances in April 2023
April 3
- National Chocolate Mousse Day
- National Find a Rainbow Day
- National Inspiring Joy Day
April 4
- International Carrot Day
- National Cordon Bleu Day
- National School Librarian Day
- National Vitamin C Day
April 5
- Bell Bottoms Day
- National Caramel Day
- National Dandelion Day
- National Deep Dish Pizza Day
- National Self Care Day
- National Walking Day
- Passover (starts at sundown)
- Peeps Day
April 6
- California Poppy Day
- Hostess Twinkie Day
- National Açaí Bowl Day
- National Burrito Day
- National Caramel Popcorn Day
- National Library Day
- National Pajama Day
- National Student Athlete Day
April 7
- Good Friday
- National Coffee Cake Day
- National Pet Health Insurance Day
- Public Television Day
- Walk to Work Day
April 8
- International Feng Shui Awareness Day
- National Zoo Lovers Day
April 9
- Easter
- National Baked Ham with Pineapple Day
- National Cherish an Antique Day
- National Unicorn Day
April 10
- Golfer’s Day
- National Encourage a Young Writer Day
- National Farm Animals Day
- National Hug Your Dog Day
- National Siblings Day
April 11
- Dog Therapy Appreciation Day
- National Cheese Fondue Day
- National Pet Day
April 12
- Hamster Day
- National Grilled Cheese Sandwich Day
April 13
- Celebrate Teen Literature Day
- International Plant Appreciation Day
- Passover ends at nightfall
- National Peach Cobbler Day
- National Scrabble Day
April 14
- International Kids Yoga Day
- National Dolphin Day
- National Donate a Book Day
- National Gardening Day
- National Pecan Day
April 15
- National ASL Day
- National Glazed Spiral Ham Day
- Record Store Day
April 16
- Good Deeds Day
- National Eggs Benedict Day
- National Orchid Day
- Save the Elephant Day
April 17
- Go Fly a Kite Day
- International Bat Appreciation Day
- International Haiku Poetry Day
- National Cheese Ball Day
April 18
April 24
- National Pigs in a Blanket Day
April 25
- National Mani-Pedi Day
- National Plumbers Day
- National Zucchini Bread Day
- School Bus Drivers’ Day
- World Penguin Day
April 26
- Administrative Professionals Day
- Denim Day
- Get Organized Day
- International Guide Dog Day
- National Pretzel Day
- World Stationery Day
April 27
- Marine Mammal Rescue Day
- National Tell A Story Day
- Take Our Daughters and Sons to Work Day
- World Design Day
April 28
- Arbor Day
- Global Pay It Forward Day
- National Blueberry Pie Day
- Stop Food Waste Day
April 29
- Indie Bookstore Day
- International Astronomy Day
- International Dance Day
- World Veterinary Day
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