Happy #NationalPuppyDay! pic.twitter.com/31bBb7hFbj

— Detroit Tigers (@tigers) March 23, 2015

From our #K9ers to yours, happy #NationalPuppyDay. http://t.co/Au56cBxqOb pic.twitter.com/41C07Sf8yN

— San Francisco 49ers (@49ers) March 23, 2015

According to Twitter it’s #NationalPuppyDay. Which means we Photoshopped pug puppies with @YasielPuig. Obviously. pic.twitter.com/mi3SUF5UWS

— SportsNet LA (@SportsNetLA) March 23, 2015

Keep em' coming! Tweet a pic of your canine fan to @Bengals #NationalPuppyDay MT @Bcatmax: Charlie's a @Bengals fan! pic.twitter.com/Wv0FMD8X3V

— Cincinnati Bengals (@Bengals) March 23, 2015

Happy #NationalPuppyDay, from @KlayThompson & Rocco! 🐾 pic.twitter.com/SibualOLKm

— Golden St. Warriors (@warriors) March 23, 2015

Do you have a #PackersPuppy? Tweet your photos & we'll RT some of our favorites. #NationalPuppyDay pic.twitter.com/tWYDemugkk

— Green Bay Packers (@packers) March 23, 2015

Happy #NationalPuppyDay from @GeorgetownJack and the Hoyas! Here are our favorite Jack puppy pics! Awwweeee…. pic.twitter.com/CVA5WuBrR4

— Georgetown Hoyas (@georgetownhoyas) March 23, 2015

Happy #NationalPuppyDay to our fine, four-legged friends in #ChiefsKingdom. pic.twitter.com/0P8Q8yJYbd

— Kansas City Chiefs (@KCChiefs) March 23, 2015

It wouldn't be a proper #NationalPuppyDay w/o @WWE Superstar dogs! Which pup is YOUR favorite? http://t.co/F6K0liNfda pic.twitter.com/m98WOgsxv0

— WWE (@WWE) March 23, 2015

MORE PUPPIES! #NationalPuppyDay pic.twitter.com/GJI7G3GuPJ

— MLB GIFS (@MLBGIFs) March 23, 2015

Happy #NationalPuppyDay! pic.twitter.com/Jbb95FgeOe

— Calgary Flames (@NHLFlames) March 23, 2015

Happy #NationalPuppyDay! pic.twitter.com/bpLopS436A

— Arizona Diamondbacks (@Dbacks) March 23, 2015

Happy #NationalPuppyDay! pic.twitter.com/6HiFJ8pmRe

— America's Pregame (@AmericasPregame) March 23, 2015

Happy #NationalPuppyDay from @turg19, @iverke and the Winterhawks! pic.twitter.com/H2ChnEFRkh

— Portland Winterhawks (@pdxwinterhawks) March 23, 2015

Happy #NationalPuppyDay! This #UFCPuppy looks like he's not happy w/ his performance. pic.twitter.com/cx8P3cVggj

— UFC (@ufc) March 23, 2015

.@str8edgeracer's pup knows what's up. To celebrate #NationalPuppyDay show us how your furry friend rocks #Angels Red pic.twitter.com/3hEvxixDoL

— Angels (@Angels) March 23, 2015

It's #NationalPuppyDay! Tweet us your #RipCityPups! pic.twitter.com/hvjwbKGLfh

— Trail Blazers (@trailblazers) March 23, 2015

Happy #NationalPuppyDay! Show us how your pup sports the purple and black, and supports #RavensNation. pic.twitter.com/QUJx0zALCt

— Baltimore Ravens (@Ravens) March 23, 2015

#NHLDucks players + puppies = #NationalPuppyDay perfection. pic.twitter.com/GzsOHujMbV

— Anaheim Ducks (@AnaheimDucks) March 23, 2015

Pats puppies = the best puppies In honor of #NationalPuppyDay, some of our favorite pats pups http://t.co/jiHDBkyCVV pic.twitter.com/K5WbaGgQc6

— New England Patriots (@Patriots) March 23, 2015

Safe to say @RealKingFelix is fired up about #NationalPuppyDay. http://t.co/saUnoYVtbq pic.twitter.com/JbvWFLUdQP

— Seattle Mariners (@Mariners) March 23, 2015

It's #NationalPuppyDay! Let's look back at a classic video of @AndreDrummondd's dog Roscoe! http://t.co/qET6KhpvoX pic.twitter.com/M3NhEqmQXb

— Detroit Pistons (@DetroitPistons) March 23, 2015

Happy #NationalPuppyDay, @Vlasic44! https://t.co/WlD01KUvoe

— San Jose Sharks (@SanJoseSharks) March 23, 2015

Happy #NationalPuppyDay pic.twitter.com/fuO3tHEfVw

— NBC Sports Network (@NBCSN) March 23, 2015

And to round out #NationalPuppyDay, here's the original #Butler Blue, circa 2000. pic.twitter.com/aSzUlqN62I

— Butler University (@butleru) March 23, 2015

Wishing our very own Swagger a Happy #NationalPuppyDay He's so photogenic >> http://t.co/w7ifomit2j #DawgPound https://t.co/lzrDxnAEvU

— Cleveland Browns (@Browns) March 23, 2015

It's #NationalPuppyDay! Tweet your pup in Vikings gear with #VikingsPets and you could be featured on our website! pic.twitter.com/zCgFwAfTIv

— Minnesota Vikings (@Vikings) March 23, 2015

Got a case of the Mondays? It's #NationalPuppyDay. You're welcome. pic.twitter.com/IIkI5CICK0

— Washington Huskies (@UWAthletics) March 23, 2015

Because it's #NationalPuppyDay. pic.twitter.com/WxsYHXAcau

— NFL Network (@nflnetwork) March 24, 2015

Shout out to all the pups out there! #Nationalpuppyday Photo taken from the 2014 #BreedersCup @SantaAnitaPark pic.twitter.com/biezVjY0H4

— Breeders' Cup (@BreedersCup) March 24, 2015

Check out our #Chargers pups celebrating #NationalPuppyDay PHOTOS: http://t.co/N71PbU0TrG pic.twitter.com/XAlMgOTYOv

— San Diego Chargers (@Chargers) March 24, 2015

#NationalPuppyDay the Spurs Way 🐶❤️🏀 Share your photos using #SpursPup pic.twitter.com/Ah7ndirK1p

— San Antonio Spurs (@spurs) March 24, 2015

It's #nationalpuppyday & time to meet this week's #MyDUPet – Reagan! Thanks to @DuqAlumni Nicole Carfang for sharing! pic.twitter.com/88KQrPeTTF

— Duquesne University (@duqedu) March 23, 2015

Check out all our #NationalPuppyDay photos + see if your Bills pup made the gallery! PHOTOS: http://t.co/SAqLRCLpWd pic.twitter.com/aFtcyM7E3E

— Buffalo Bills (@buffalobills) March 23, 2015

Happy #NationalPuppyDay! Celebrate with your furry Braves friend at Bark in the Park on May 3! http://t.co/RvMd23CE8r pic.twitter.com/DDgToUYYkG

— Atlanta Braves (@Braves) March 23, 2015

Happy #NationalPuppyDay! Show us a pic of your pup representing the Magic using #PureMagicSweeps to win prizes! pic.twitter.com/2aFaA8Ewzv

— Orlando Magic (@OrlandoMagic) March 23, 2015

Happy #NationalPuppyDay! pic.twitter.com/SVYrHXGHoS

— Cal Bears (@CalAthletics) March 23, 2015

Maybe he's not a puppy anymore, but he's a #DGD. #NationalPuppyDay pic.twitter.com/8nJZuufjU5

— UGA (@universityofga) March 23, 2015

Show us your #PSUPup! #NationalPuppyDay! pic.twitter.com/LzVPhvQ8lS

— Penn State Athletics (@GoPSUsports) March 23, 2015

Happy #NationalPuppyDay! pic.twitter.com/ohnpPndPdZ

— Colorado Rockies (@Rockies) March 23, 2015

Check out Robert Quinn with his pup Sophie. #NationalPuppyDay VIDEO: http://t.co/OF1ccyGhFl pic.twitter.com/xzavGpfjdC

— St. Louis Rams (@STLouisRams) March 23, 2015

It's #NationalPuppyDay…We think puppies look best in Silver and Black! @nfl #NFLPups pic.twitter.com/9FdNtuDfWQ

— OAKLAND RAIDERS (@RAIDERS) March 23, 2015

Happy #NationalPuppyDay! Post pics of pups in #AZCardinals gear using #CardinalsK9 and they may be used in a gallery! pic.twitter.com/SquNF7yBFB

— Arizona Cardinals (@AZCardinals) March 23, 2015