National Rescue Dog Day is observed in the United States every year on May 20. Founded by Liza Wiehenbrick, the holiday aims to highlight the many dogs in shelters waiting for adoption. It emphasizes the importance of adopting rescue dogs, as many shelters face the challenge of pet overpopulation and the potential euthanization of animals that are not adopted quickly. Responsible shelters ensure that potential adopters can provide a safe and secure home for the dogs, which may include proper diet, veterinary care, and training. The day encourages individuals to get involved by volunteering, donating to local shelters, adopting, or fostering rescue dogs. Celebrations often include sharing stories and photos of rescue dogs on social media using the hashtag #NationalRescueDogDay.