• International Children's Day - Second Sunday in December
December 1
• Eat a Red Apple Day
• World Aids Awareness Day
December 2
• World Computer Literacy Day
• International Day for the Abolition of Slavery
• National Fritters Day
December 3
• International Day of People with Disability or World Disability Day
• Advent
• National Roof over Your Head Day
December 4
• Santas' List Day
• Wear Brown Shoes Day
December 5
• International Volunteer Day for Economic and Social Development
• Bathtub Party Day
• Repeal Day
December 6
• St. Nicholas Day
• Mitten Tree Day
• Put on your own Shoes Day
December 7
• International Civil Aviation Day
• Letter Writing Day
• National Cotton Candy Day
• Pearl Harbor Day
December 8
• National Brownie Day
• Take it in the Ear Day
December 9
• The International Anti-Corruption Day
• Christmas Card Day
• National Pastry Day
December 10
• Human Rights Day
December 11
• International Mountain Day
• UNICEF Day
• National Noodle Ring Day
December 12
• Channukah - date varies
• National Ding-a-Ling Day
• Poinsettia Day
December 13
• Ice Cream Day
• Violin Day
December 14
• International Monkey Day
• National Bouillabaisse Day
• Roast Chestnuts Day
December 15
• Bill of Rights Day
• National Lemon Cupcake Day
December 16
• National Chocolate Covered Anything Day
December 17
• National Maple Syrup Day
December 18
• International Migrants Day
• Bake Cookies Day
• National Roast Suckling Pig Day
December 19
• Look for an Evergreen Day
• Oatmeal Muffin Day
December 20
• International Human Solidarity Day
• Go Caroling Day
December 21
• Crossword Puzzle Day
• Forefather's Day
• Humbug Day
• Look on the Bright Side Day
• National Flashlight Day
• Winter Solstice
December 22
• National Date Nut Bread Day
December 23
• Festivus
• Roots Day
December 24
• National Chocolate Day
• National Egg Nog Day
December 25
• Christmas Day
• National Pumpkin Pie Day
December 26
• Boxing Day
December 27
• Make Cut Out Snowflakes Day
• National Fruitcake Day
December 28
• Card Playing Day
December 29
• Pepper Pot Day
December 30
• Bacon Day
• National Bicarbonate of Soda Day
December 31
• Make Up Your Mind Day
• New Year's Eve
• Unlucky Day