| October Monthly Observances |
| Adopt A Shelter Dog Month |
| Antidepressant Death Awareness Month |
| (World) Blindness Awareness Month |
| Celebrate Sun Dried Tomatoes Month |
| Celiac Sprue Awareness Month |
| Celebrate The Bilingual Child Month |
| Children's Magazine Month |
| Christmas Seal Campaign (10/1-12/31) |
| Church Library Month |
| Church Safety and Security Month |
| Class Reunion Month |
| Co-op Awareness Month |
| Domestic Violence Awareness Month |
| Dyslexia Awareness Month |
| Eat Better, Eat Together Month |
| Emotional Intelligence Month |
| Emotional Wellness Month |
| Energy Management is a Family Affair-Improve Your Home Month (10/1-3/31/08) |
| Gay & Lesbian History Month |
| German-American Heritage Month |
| Global Diversity Awareness Month |
| Go Hog Wild - Eat Country Ham |
| Halloween Safety Month |
| Head Start Awareness Month |
| Health Literacy Month |
| International Starman Month |
| International Strategic Planning Month |
| Long Term Care Planning Month |
| Lupus Awareness Month |
| National Animal Safety and Protection Month |
| National Bake and Decorate Month |
| National Breast Cancer Awareness Month |
| National Caramel Month |
| National Chili Month |
| National Chiropractic Month |
| National Crime Prevention Month |
| National Dental Hygiene Month |
| National Depression Education & Awareness Month |
| National Disability Employment Awareness Month |
| National Domestic Violence Awareness Month |
| National Down Syndrome Month |
| National Ergonomics Month |
| National Family Sexuality Education Month |
| National "Gain The Inside Advantage" Month |
| National Go On A Field Trip Month |
| National Kitchen & Bath Month |
| National Liver Awareness Month |
| National Medical Librarian Month |
| National Orthodontic Health Month |
| National Physical Therapy Month |
| National Popcorn Poppin' Month |
| National Reading Group Month |
| National Roller Skating Month |
| National RSV Awareness Month |
| National Sarcastic Awareness Month |
| National Seafood Month |
| National Spina Bifida Awareness Month |
| National Window Covering Safety Month |
| National Work and Family Month |
| National Sudden Infant Death Syndrome Awareness Month |
| Organize Your Medical Information Month |
| Pastor (Clergy) Appreciation Month |
| Photographer Appreciation Month |
| Polish American Heritage Month |
| Positive Attitude Month |
| Raptor Month |
| Rett Syndrome Awareness Month |
| Right Brainers Rule! Month |
| Self-Promotion Month |
| Spinach Lovers Month |
| Squirrel Awareness Month |
| Stamp Collecting Month |
| Talk About Prescriptions Month |
| Vegetarian Month |
| Wishbones for Pets Month (10/15 - 11/30) |
| Women's Small Business Month |
| Workplace Politics Month |
|
| October Weekly Observances |
|
| No Salt Week: 2-9 |
| World Space Week: 4-10 |
| National Work From Home Week: 5-11 |
| Emergency Nurses Week: 5-11 |
| Fire Prevention Week: 5-11 |
| The Magic of Differences Week:5-11 |
| Mental Illness Awareness Week: 5-11 |
| Mystery Series Week: 5-11 |
| National Carry A Tune Week: 5-11 |
| National Metric Week: 5-11 |
| Nuclear Medicine Week: 5-11 |
| Customer Service Week: 6-12 |
| Financial Planning Week: 6-12 |
| Improve Your Home Office Week: 6-10 |
| Kids' Goal Setting Week: 6-10 |
| Spinning & Weaving Week: 6-12 |
| Physicians Assistant Week: 6-12 |
| Build Your Business with Business Cards Week: 12-18 |
| Infection Prevention Week: 12-18 |
| National Chestnut Week: 12-18 |
| National Food Bank Week: 12-18 |
| National School Lunch Week: 12-18 |
| American Association of Medical Assistants: 13-19 |
| Freedom of Speech Week: 13-19 |
| National Veterinary Technician Week: 13-19 |
| World Rainforest Week: 13-19 |
| Getting The World To Beat A Path To Your Door Week: 14-20 |
| Celebrate Micro Small and Home Business Week: 16-22 |
| Food and Drug Interaction Education and Awareness Week: 17-24 |
| National Chemistry Week: 19-25 |
| YWCA Week without Violence: 19-25 |
| Teen Read Week: 19-25 |
| National Infection Prevention Week: 19-25 |
| Kids Care Week: 19-25 |
| National Character Counts Week: 19-25 |
| National Food Bank Week: 19-25 |
| National Forest Products Week: 19-25 |
| National Massage Therapy Week: 19-25 |
| National Respiratory Care Week: 19-25 |
| National School Bus Safety Week: 19-25 |
| Synergy Week International: 19-25 |
| National Businesswomen's Week: 20-24 |
| National Health Education Week: 20-24 |
| Pastoral Care Week: 20-26 |
| World Hearing Aid Awareness Week: 23-29 |
| Disarmament Week: 24-30 |
| Prescription Errors Education & Awareness Week: 24-31 |
| International Magic Week: 25-31 |
| Give Wildlife a Break Week: 27-11/2 |
| International Herpes Awareness Week: 31-11/6 |
|
| October Daily Observances |
|
| Balloons Around The World: 1 |
| Child Health Day: 1 |
| Fire Pup Day: 1 |
| International Day of Older Persons: 1 |
| World Vegetarian Day: 1 |
| Guardian Angels Day: 2 |
| Phileas Fogg's Wager Day: 2 |
| National Custodial Workers Day: 2 |
| World Farm Animals Day: 2 |
| Lee's National Denim Day: 3 |
| National Diversity Day: 3 |
| World Smile Day: 3 |
| Ten-Four Day: 4 |
| World Card Making Day: 4 |
| Country Inn & Bed and Breakfast Day: 5 |
| Intergeneration Day: 5 |
| World Communion Day: 5 |
| World Teachers Day: 5 |
| Jackie Mayer Rehab Day: 6 |
| Mad Hatter Day: 6 |
| National German-American Day: 6 |
| Physician Assistant (PA) Day: 6 |
| World Habitat Day: 6 |
| Alvin C. York Day: 8 |
| Cosmopolite's Day: 8 |
| International Day for Natural Disaster Reduction: 8 |
| International Top Spinning Day: 8 |
| National Bring Your Teddy Bear To Work & School Day: 8 |
| Native Americans' Day: 8 |
| Yom Kipper: 8 |
| Leif Erickson Day: 9 |
| National Depression Screening Day: 9 |
| World Post Day: 9 |
| World Sight Day: 9 |
| Emergency Nurses Day: 10 |
| National Cake Decorating Day: 10 |
| Naval Academy Day: 10 |
| World Mental Health Day: 10 |
| General Pulaski Memorial Day: 11 (President) |
| International Newspaper Carrier Day: 11 |
| National Coming Out Day: 11 |
| Reptile Awareness Day: 11 |
| Universal Music Day: 11 |
| Clergy (Pastor) Appreciation Day: 12 (No official sponsor. Always 2nd Sunday) |
| International Moment of Frustration Scream Day: 12 |
| Columbus Day: 13 |
| Ironman Competition: 13 |
| National Kick Butt Day: 13 |
| Navy Birthday: 13 |
| Be Bald and Be Free Day: 14 |
| National Grouch Day: 15 |
| Support Your Local Chamber of Commerce: 15 |
| White Cane Safety Day: 15 |
| Boss's Day (or National Boss's Day) : 16 |
| Department Store Day: 16 |
| Dictionary Day: 16 |
| Get to Know Your Customers Day: 16 ( also January 17, April 17, July 17) |
| Get Smart About Credit Day: 16 |
| International Credit Union Day: 16 |
| World Food Day: 16 |
| International Day for the Eradication of Poverty: 17 |
| Mammography Day: 17 |
| Mulligan Day: 17 |
| Sweetest Day: 18 |
| World Menopause Day: 18 |
| World Toy Camera Day: 18 |
| Evaluate Your Life Day: 19 |
| Sunday School Teacher Appreciation Day: 19 |
| Birth of the Bab: 20 |
| World Osteoporosis Day: 20 |
| Day of International Concern About Young People and Gun Violence: 22 |
| International Day of Radiant Peace: 22 (also January 22, March 22, June,22) |
| International Stuttering Awareness Day: 22 |
| National Mole Day: 23 |
| International Bandanna Day: 24 |
| Lung Health Day: 24 |
| United Nations Day: 24 |
| World Development Information Day: 24 |
| Make A Difference Day: 25 |
| World Priest Day: 26 |
| Cranky Co-workers Day: 27 |
| Mother-in-Law Day: 26 |
| Navy Day: 27 |
| Diwali: 28 (This varies every year. See .) |
| National Chocolates Day: 28 |
| St. Jude's Day: 28 |
| Internet Day: 29 |
| Create A Great Funeral Day: 30 |
| Haunted Refrigerator Night: 30 |
| National Candy Corn Day: 30 |
| Books for Treats Day: 31 |
| Frankenstein Friday: 31 |
| National Caramel Apple Day: 31 |
| National Knock-Knock Jokes Day: 31 |
| National Magic Day: 31 |
| National UNICEF Day: 31 |
| Halloween: 31 |
| Samhain: 31 |
