No primary source documents who created National Michelle Day or why it falls on October 2. It is a name-day for the given name Michelle that circulates on holiday-listing sites and socially, with no proclamation, founder, registrar, or campaign of record.
A French name crosses the Channel
Before about 1930, almost no one in the English-speaking world was named Michelle. The spread is usually credited to the French-born actress Michèle Morgan, whose fame carried the name out of France and into the Anglosphere.
The name traveled with its cousins. French gave it Michele and Micheline. Italian and Latin forms added Michela and Michaela. Short forms like Shelley and Elle followed.



