2025 Holidays And Observances In October. 137 rows united states 2025 holiday calendar with all major holidays and observances. Halloween is only one of many events during the fall month.

As the autumn leaves begin to paint the landscape with vibrant hues, october arrives in the united states with a tapestry of important holidays, observations, and events. These are all the holidays and observances you should keep an eye out for in october in 2025.