The Thestrals in the Harry Potter series are kind of like dark versions of Pegasus. Don't let their scary appearance fool you, though. Just like Pegasus, the Thestrals are totally nice winged horses—even if they do eat raw meat.
Get ready to geek out. The Pegasus is the name of a giant Cylon-smashing spaceship on Battlestar Galactica. We're pretty sure Pegasus is proud of this namesake.
Tri-Star Pictures was so into Pegasus that they made him their logo. How's that for famous?
All you have to do is look to the north at night to see Pegasus chilling in the sky as a constellation.