List of Holidays on Thursday, 26 September 2024.
| Holidays | Country |
| World Quantum Readiness Day | World |
| World Maritime Day | International |
| Shamu the Whale Day | United States (US) |
| Remember Me Thursday | United States (US) |
| National Situational Awareness Day | United States (US) |
| National Pancake Day | United States (US) |
| National Mesothelioma Awareness Day | United States (US) |
| National Law Enforcement Suicide Awareness Day | United States (US) |
| National Key Lime Pie Day | United States (US) |
| National Dumpling Day | United States (US) |
| National Day of Praise and Worship | United States (US) |
| National Compliance Officer Day | United States (US) |
| National Chimichanga Day | United States (US) |
| Lumberjack Day | United States (US) |
| Love Note Day | United States (US) |
| Johnny Appleseed Day | United States (US) |
| International Day for the Total Elimination of Nuclear Weapons | International |
| HR Professionals Day | United States (US) |
| European Languages Day | International |
| European Day of Languages | United Kingdom (UK) |
| Dominion Status Day | New Zealand |
| Better Breakfast Day | United States (US) |
| Alpaca Day | United States (US) |