- National Call a Friend Day 2019 – December 28
- National Fruitcake Day 2019 – December 27
- National Cookie Exchange Day 2019 — December 22
- National Ice Cream Day 2019 – December 13
- National Gingerbread House Day 2019 — December 12
- National Pastry Day 2019 — December 9
- National Pearl Harbor Day of Remembrance 2019 — December 7
- International Civil Aviation Day 2019 — December 7
- National Letter Writing Day 2019 — December 7
- National Gazpacho Day 2019 — December 6
- National Repeal Day 2019 — December 5
- National Disability Day 2019 — December 3
- World AIDS Day 2019 — December 1
- National Christmas Lights Day 2019 — December 1
- National Computer Security Day 2019 — November 30
- National Lemon Cream Pie Day 2019 — November 29
- Go For A Ride Day 2019 — November 22
- World Television Day 2019 — November 21
- National Stuffing Day 2019 — November 21
- Universal Children’s Day 2019 — November 20
- Future Teachers of America Day 2019 – November 20
- World Toilet Day 2019 — November 19
- International Men’s Day 2019 – November 19
- Mickey Mouse Day 2019 – November 18
- International Day For Tolerance 2019 – November 16
- National Clean Out Your Fridge Day 2019 – November 15
- World Diabetes Day 2019 – November 14
- National Happy Hour Day 2019 — November 12
- Veterans Day 2019 — November 11
- National Vanilla Cupcake Day 2019 — November 10
- Sesame Street Day 2019 – November 10
- Go to an Art Museum Day 2019 — November 9
- National Nachos Day 2019 – November 6
- American Football Day 2019 — November 5
- Job Action Day 2019 – November 4
- National Homemaker Day 2019 – November 3
- Daylight Savings Day 2019 — November 3
- National Cook For Your Pets Day 2019 — November 1
- National Vinegar Day 2019 — November 1
- National Black Cat Day 2019 — October 27
- World Osteoporosis Day 2019 – October 20
- World Tourism Day 2019 – September 27
- National Family Day 2019 – September 26
- National Cherries Jubilee Day 2019 – September 24
- First Day of Fall 2019 – September 23
- National Dogs in Politics Day 2019 – September 23
- World Hepatitis Day 2019 – July 28
- National Milk Chocolate Day 2019 – July 28
- National Scotch Day 2019 – July 27
- National Hammock Day 2019 – July 22
- National Junk Food Day 2019 – July 21
- World Listening Day 2019 – July 18
- National Corn Fritter Day 2019 – July 16
- National Macaroon Day 2019 – May 31
- Learn About Composting Day 2019 – May 29
- National Paper Airplane Day 2019 – May 26
- National Taffy Day 2019 – May 23
- Harvey Milk Day 2019 – May 22
- International Day for Biological Diversity 2019 – May 22
- National Waiters and Waitresses Day 2019 – May 21
- National Devil’s Food Cake Day 2019 – May 19
- National Mimosa Day 2019 – May 16
- National Buttermilk Biscuit Day 2019 – May 14
- National Fruit Cocktail Day 2019 – May 13
- National Limerick Day 2019 – May 12
- World Migratory Bird Day 2019 – May 11
- National Shrimp Day 2019 – May 10
- National Moscato Day 2019 – May 9
- National Have a Coke Day 2019 – May 8
- National Paranormal Day 2019 – May 3
- Martin Luther King, Jr. Day 2019 — January 21
- National Thesaurus Day 2019 — January 18