Superheroes are quite popular even back in the old days and even more right now in the modern times as they are the savior of mankind, they like helping people who are in need and they are always there to lend a helping hand.
There is a lot of market of superheroes nowadays from the Avengers or the X-men to other classic superheroes such as Superman, Spiderman and whoever is right there. You can make a birthday theme that you can use, even the new superheroes like Deadpool, Dr. Strange and a lot more.
Here are some memes about superheroes that you can use to greet your friend or your little kid. You can use them to have something to send to your friends on the internet. There is a wide range of superhero birthday meme below in which you can choose from so you can choose the best one you think.