Preheat the oven to 475°F (245°C). If using a pizza stone, place it in the oven as it heats.
In a mixing bowl, combine the shredded chicken and BBQ sauce, ensuring the chicken is well coated. Set aside.
On a floured surface, roll out the pizza dough into a 12-inch circle. If using cornmeal, sprinkle it on the baking sheet or pizza stone to prevent sticking.
Transfer the pizza dough to the baking sheet or preheated pizza stone.
Brush the dough lightly with olive oil to enhance flavor and crispiness.
Evenly spread the BBQ chicken mixture over the pizza dough.
Sprinkle the shredded mozzarella cheese on top of the chicken mixture.
Distribute the thinly sliced red onions evenly atop the cheese.
Bake in the preheated oven for 15-20 minutes, or until the crust is golden and the cheese is melted and bubbly.
Remove from the oven and sprinkle the chopped cilantro over the hot pizza.
Let the pizza cool for a few minutes, then slice and serve.