National Dog Day was started in 2004 to recognize the massive number of shelter pets looking for a good home and to encourage their adoption. If you're looking for a companion of your own and ready for the responsibility, take a look at the ASPCA adoption site or Petfinder.com to find a shelter near you.
HuffPosters shared some adorable photos of their best friends, and we want to see those furry pals that hold a special place in your heart. So upload a photo below, or tweet us @HuffPostGreen with your plans to celebrate this joyous occasion.
UPDATE 8/27: Submissions are now closed. Thank you to everyone who submitted a photo and helped make this one of the best National Dog Days ever!