December 9 is the 343rd day in the Gregorian calendar. On this day, Mozart diet in Vienna, North America's first YMCA was established, and the Petrified National Forest was established in Arizona. Famous birthdays include Judi Dench, Kirk Douglas, and John Malkovich. December 9 also marks National Llama Day and National Pastry Day.

We have 2 holidays listed for December 9.