May 25 is the 145th day of the year (146th in leap years) in the Gregorian calendar, leaving 220 days until the end of the year. Today’s observances span awareness campaigns, geek culture, musical traditions, and health initiatives—making it a day as diverse as it is meaningful.

A few celebrations, like National Family Fun Day, shift based on the Memorial Day weekend, while the rest are fixed to May 25.
Here’s a full overview of the 14 national and international days observed on May 25.
National and International Days on May 25
Geek Pride Day: Celebrates passion-driven interests, from sci-fi and fantasy to cosplay, gaming, and comic books. Observed annually on May 25, the day embraces the enthusiastic and intellectual side of fandom culture, encouraging self-expression and pride in niche interests. The date was chosen to coincide with the 1977 release of Star Wars: A New Hope, a cultural touchstone for geek communities. A related observance, National Hike with a Geek Day, falls on June 20.
International Plastic Free Day: Raises awareness about the massive use of single-use plastics and encourages people to go plastic-free for 24 hours. Founded by Free the Ocean, the day challenges individuals to avoid disposable bottles, utensils, containers, and bags on May 25 to reflect on consumption habits. It complements International Plastic Bag Free Day, held in July, which was launched by GAIA in 2008 to reduce plastic bag usage globally.
International Skin Pigmentation Day: Launched in 2020 by skincare brand Lullage (Bella Aurora) to educate people about pigmentation conditions and treatment options. Originating in Spain, the observance now reaches over two dozen countries. It promotes inclusivity and self-love, aiming to normalize all skin tones and reduce bias associated with skin color differences.
National Bath Bomb Day: Celebrated every May 25 to promote self-care and the sensory joy of bath bombs. The day was created by the Desert Bath Company in 2021 to mark the anniversary of the product’s public release. It’s a reminder to slow down and prioritize relaxation.
🛀 Similar events are: World Bath Bomb Day on April 27 (founded by Lush), as well as National Bubble Bath Day celebrated every January 8.
National Brown-Bag-It Day: Encourages people to pack their own lunch for school or work as a cost-effective and health-conscious habit. Observed annually on May 25, the day promotes mindful eating, portion control, and reduced environmental waste compared to takeout or vending machine meals. It also highlights the eco-friendliness of reusable containers and biodegradable paper bags.
National Family Fun Day* (Sunday before Memorial Day): Encourages families across the U.S. to spend quality time together during the long holiday weekend. Launched in 2023, this observance promotes togetherness through simple joys—picnics, games, and shared meals.
🤗 National Family Fun Day aligns with International Day of Families on May 15 and Family Fun Month in August. See also the complete list of national days dedicated to family.
National Missing Children’s Day: Established by U.S. President Ronald Reagan in 1983 to honor missing children and raise awareness about child safety. The observance is held each year on May 25, the same date that six-year-old Etan Patz disappeared in 1979 in New York City. Etan’s case helped bring national attention to the issue and inspired protocols for responding to child abductions.
National Sing Out Day: Invites everyone to let their voice be heard—literally. Celebrated annually on May 25, this lighthearted holiday encourages singing without inhibition, whether it’s on a stage, in the shower, or during your commute. The origin of the day remains unknown, but its joyful spirit resonates with music lovers, karaoke fans, and anyone who enjoys belting out a tune.
National Tap Dance Day: Honors the uniquely American art form of tap dancing. Recognized on May 25 to coincide with the birthday of legendary performer Bill “Bojangles” Robinson, the day was officially signed into law by President George H. W. Bush in 1989 following a petition by Robinson’s relative. With roots in African and Irish dance traditions, tap dancing has evolved into a rhythmic expression celebrated worldwide.
National VTuber Day: Celebrates virtual YouTubers who use animated avatars for livestreaming and content creation. Observed on May 25, the day highlights a digital trend that originated in Japan in the mid-2010s and has since gained global popularity. VTubers use motion capture and software to bring their characters to life, often engaging in games, storytelling, and community-building.
🎥 A similar observance, International Vlogging Day, is held on August 10.
National Wine Day: Observed on May 25 to recognize and enjoy the wide world of wine—from robust reds and crisp whites to rosés and sparkling varieties. Wine has been part of human culture for thousands of years, and this day invites people to learn more about wine regions, tasting techniques, and pairing options.
Related observances include National Drink Wine Day on February 18 and Sauvignon Blanc Day, which falls on the first Friday in May.
Towel Day: Celebrated on May 25 in memory of British author Douglas Adams, best known for The Hitchhiker’s Guide to the Galaxy. Launched by fans in 2001, just two weeks after Adams’ passing, the day pays tribute to his wit and imagination. Fans around the world carry a towel in his honor, referencing the book’s humorous assertion that a towel is the most useful item for intergalactic travel.
Victoria Day 🇨🇦* (Monday before May 25): This is a Canadian public holiday honoring Queen Victoria’s birthday. First celebrated in 1845 and officially established as a federal holiday in 1901, it marks the start of summer festivities across Canada. Though it falls close to May 25, the date changes annually. In Quebec, National Patriots’ Day is observed instead.
World Thyroid Day: Founded in 2007 by Thyroid Federation International and first celebrated by the European Thyroid Association. May 25 was chosen to mark the date of the ETA’s founding in 1965. The observance raises awareness about thyroid health, a topic that affects millions worldwide. It also promotes early diagnosis and education about conditions such as hypothyroidism, hyperthyroidism, and thyroid cancer.
National Days in May
May 1 | May 2 | May 3 | May 4 | May 5 | May 6 | May 7 | May 8 | May 9 | May 10 | May 11 | May 12 | May 13 | May 14| May 15 | May 16 | May 17 | May 18 | May 19 | May 20 | May 21 | May 22 | May 23 | May 24 | May 25 | May 26 | May 27 | May 28 | May 29 | May 30 | May 31
➡️ Have you already seen DigitalHyyge’s National Days Calendars 2025?
➡️ Complete list of May National Days
➡️ Complete list of June National Days
➡️ Curious to see more national and international celebrations? We have dozens of national days lists curated for you!