National Smile Day 2024 Australia. Read about world smile day around the world in 2024. The first friday of october is world smile day (october 4), a relatively new holiday with a fascinating story.

The creator of the smiley face started this holiday to devote one day a year to smiles and kind acts. National smile month is a charity campaign all about championing the benefits of having good oral health and promoting the value of a healthy smile.