Celebrated on 09/22/2026
National Girls' Night In, celebrated annually on the third Friday of September, was created to encourage women to take a break from their busy schedules and enjoy a night of self-care and bonding with friends at home. The holiday gained traction through social media, with millions of women sharing their cozy night-in routines using hashtags like #GirlsNightIn.
National Girls' Night In was founded in 2018 by a group of women entrepreneurs who recognized the need for a designated time for women to prioritize relaxation and friendship. The holiday was established as a counterbalance to the often hectic social calendar, emphasizing low-key, intimate gatherings at home. It was first celebrated on September 21, 2018, and has since been observed on the third Friday of September each year.
Initially celebrated primarily through social media campaigns and small gatherings, National Girls' Night In has evolved into a widely recognized event. Brands and influencers now promote themed activities such as DIY spa nights, movie marathons, and cooking parties. In recent years, the holiday has expanded to include virtual events, especially during the pandemic, allowing women to connect online for games, book clubs, or watch parties. Today, it is celebrated by women of all ages as a night to unwind, recharge, and strengthen social bonds without the pressure of going out.
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