October 1st
Fire Pup Day
National Homemade Cookies Day [Get me some of that...]

October 2nd
National Custodial Workers Recognition Day
National Name Your Car Day
National Fried Scallops Day

October 3rd
National Techies Day
National Boyfriend Day
National Child Health Day – First Monday in October

October 4th
National Taco Day
National Golf Lover's Day
National Vodka Day

October 5th
National Pumpkin Seed Day * – First Wednesday in October
National Do Something Nice Day
National Apple Betty Day
National Walk to School Day – First Wednesday in October

October 6th
National Mad Hatter Day
National German-American Day
National Noodle Day

October 7th
National LED Light Day *
National Frappe Day
National Manufacturing Day – First Friday in October

October 8th
National Fluffernutter Day
National Pierogi Day
American Touch Tag Day
National Costume Swap Day – Second Saturday in October
National Motorcycle Ride Day* – Second Saturday in October

October 9th
National Leif Erikson Day
National Pro-Life Cupcake Day
National Moldy Cheese Day
National Chess Day
Clergy Appreciation Day (or Pastor Appreciation Day or Ministry Appreciation Day)(No official sponsor) – Second Sunday in October

October 10th
National Angel Food Cake Day
National Cake Decorating Day
National Handbag Day
National Online Bank Day* – Second Monday in October
National Kick Butt Day – Second Monday in October
Native American Day – Second Monday in October
Columbus Day  – Second Monday in October

October 11th
National Sausage Pizza Day
National Coming Out Day
General Pulaski Memorial Day

October 12th
National Freethought Day
National Farmer's Day
National Gumbo Day
National Take Your Parents To Lunch Day – Changes Annually
National Fossil Day – On Wednesday of Second Full Week in October
National Emergency Nurse's Day – Second Wednesday in October
National Bring Your Teddy Bear to Work/School Day – Second Wednesday in October
National Stop Bullying Day – Second Wednesday in October

October 13th
National Train Your Brain Day
National Yorkshire Pudding Day
Navy Birthday
National No Bra Day

October 14th
National Dessert Day
Be Bald and Be Free Day

October 15th
National Aesthetician Day*
National Cheese Curd Day
National I Love Lucy Day
National Grouch Day
National Latino AIDS Awareness Day
National Pregnancy and Infant Loss Awareness Day
National White Cane Safety Day
National Sweetest Day – Third Saturday in October

October 16th
National Liqueur Day
National Dictionary Day
National Feral Cat Day
Department Store Day

October 17th
National  Edge Day
National Mulligan Day
National Pasta Day
Black Poetry Day
Boss's Day (or National Boss's Day) – Annually Oct. 16 unless it falls on a weekend. Then it's the closest workday.
National Clean Your Virtual Desktop Day – Third Monday in October

October 18th
National Chocolate Cupcake Day
National No Beard Day
Pro-Life Day of Silent Solidarity – Third Tuesday in October
National Pharmacy Technician Day – Third Tuesday in October

October 19th
National Seafood Bisque Day
BRA Day USA – Third Wednesday in October
Hagfish Day – Third Wednesday in October
Support Your Local Chamber of Commerce – Third Wednesday in October
National LGBT Center Awareness Day
Medical Assistants Recognition Day – On Wednesday of Third Full Week in October

October 20th
National Brandied Fruit Day
National Get Smart About Credit Day – Third Thursday in October
Get to Know Your Customers Day – Third Thursday of Each Quarter (January, April, July, October)

October 21st
National Pumpkin Cheesecake Day
National Reptile Awareness Day
National Mammography Day – Third Friday in October

October 22nd
National Nut Day
National Color Day
National Make A Difference Day – Fourth Saturday in October

October 23rd
National Boston Cream Pie Day
National Mole Day
National TV Talk Show Host Day  (Johnny Carson's birthday)
Swallows Depart from San Juan Capistrano Day
iPod Day
National Mother-in-Law Day – Fourth Sunday in October

October 24th
National Food Day
National Bologna Day
United Nations Day

October 25th
National Greasy Food Day
Sourest Day
Chucky, The Notorious Killer Doll Day

October 26th
National Day of the Deployed
National Mule Day
National Pumpkin Day
National Mincemeat Day

October 27th
National American Beer Day
Navy Day
National Black Cat Day

October 28th
National Chocolate Day
National Pharmacy Buyer Day – Friday of Last Full Week in October
National Frankenstein Friday – Last Friday in October
National Breadstick Day – Last Friday in October

October 29th
National Cat Day
National Oatmeal Day
National Hermit Day

October 30th
National Speak Up For Service Day
National Publicist Day
National Candy Corn Day

October 31st
National Caramel Apple Day
National Knock-Knock Jokes Day
National Magic Day
Girl Scout Founder's Day
Halloween
Anniversary of Natalie's Death