International Smile Day 2024. The world smile day spreads smiles, and fosters connections, positivity, and a wave of happiness. Here's everything you need to know about the date, theme, history, significance, and ways to celebrate it with posters and messages.

On october 4, world smile day ®, we illuminated a record 64 landmarks around the world — from the cn tower in toronto to the bt tower in london, from the puente de la mujer (women’s bridge) in buenos aires to the rizal monument in manila, to everywhere in between — in smile train blue. World smile day 2024 will once again bring people together to foster goodwill and kindness.