Yes eggs are on the list of being an acidic food.
Eggs are pretty high in acid content when it comes to acidic food and eating too many eggs has been shown to cause acidic buildup in some people.
If you have acid problems then you should avoid eating too many eggs but eggs are okay for those who do have acid problems such as acid reflux disease.
Just don't eat too many eggs and you'll be okay.
Some other foods besides eggs that are acidic are foods such as lentils, meat, fish, beans and even peas.
Coffee is also pretty acidic when it comes to drinks so coffee can also cause indigestion problems when you are suffering from too much acid in your stomach.