According to the internet, yes and no:
"Pizza is not a pie. Although pizza and pies are both doughy and often contain similar ingredients, there are several key differences between the two. For one, pies are typically sweet, while pizza is savory. Pies also have a top and bottom crust, while pizza only has a bottom crust.
However, some people consider pizza as a pie because it is made with dough that is usually leavened, which means that it rises. Pie dough, on the other hand, is not typically leavened. Pizza also has tomato sauce, which is something you would never find in a traditional pie.
So technically speaking, pizza can be considered as a pie but it’s not a traditional pie."