Here are the holidays in September 2023:
- Labor Day: September 4th
- National Lazy Moms Day: September 1st
- American Chess Day: September 1st
- National Food Bank Day: September 1st
- World Letter Writing Day: September 1st
- National Macadamia Nut Day: September 4th
- National Pet Rock Day: September 4th
- National Wildlife Day: September 4th
- Eat an Extra Dessert Day: September 4th
- National Cheese Pizza Day: September 5th
- International Day of Charity: September 5th
- National Beer Lovers Day: September 7th
- International Literacy Day: September 8th
- Grandparents Day: September 10th
- Patriot Day: September 11th
- National Cheeseburger Day: September 18th
- National Pepperoni Pizza Day: September 20th
- Falls Prevention Awareness Day: September 22nd
- National Elephant Appreciation Day: September 22nd
- Car Free Day: September 22nd
- World Rhino Day: September 22nd
- International Talk like a Pirate Day: September 19th
- National Biscotti Day: September 29th
- National Coffee Day: September 29th
Note that this list may not be exhaustive and there may be other holidays or observances celebrated in September 2023 that are not included here.
