Hobbit Day is a name used for September 22 in reference to its being the birthday of the hobbits Bilbo and Frodo Baggins, two fictional characters in J. R. R. Tolkien’s popular set of books The Hobbit and The Lord of the Rings.

According to the fictional setting, Bilbo was born in the year of 2890 and Frodo in the year of 2968 in the Third Age (1290 and 1368 respectively in Shire-Reckoning.)