Celebrated on 05/31/2026
National Smile Day was established in 2018 by Dr. Tim Stirneman and Jim Wojdyla of Compassionate Dental Care in Lake in the Hills, Illinois. Observed annually on May 31, the day was created to highlight the importance of oral health and the positive impact of smiling on an individual's well-being. The initiative encourages people to share their smiles while acknowledging the dental professionals who help maintain them.
National Smile Day was created by Dr. Tim Stirneman and Dr. Matt Poyner, two dentists from Illinois, in 2016. They wanted to promote oral health and the power of a smile, emphasizing that a healthy smile can boost confidence and well-being. The day was established as a non-commercial holiday to encourage people to share their smiles and perform random acts of kindness.
Since its inception, National Smile Day has grown through social media campaigns using hashtags like #NationalSmileDay and #SmileDay. It is now celebrated not only in the United States but also in other countries. People participate by smiling more, taking smiling selfies, and doing kind deeds such as complimenting strangers or donating to charity. Many dental practices and schools also use the day to educate about dental hygiene.
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