Preheat the air fryer to 375°F for 3 minutes while you mix ingredients.
Combine ground pork, panko, beaten egg, lemon zest, lemon juice, minced garlic, salt, cracked black pepper, and parsley in a large bowl; mix gently until just combined.
Portion using a 1.5 tablespoon scoop and roll into 1-inch meatballs; place on a rimmed tray and chill in the refrigerator for 10 minutes to firm up.
Brush or spray each meatball lightly with olive oil and arrange in a single layer in the air fryer basket, leaving ½-inch space between meatballs.
Air fry at 375°F for 10–12 minutes, shaking the basket or turning meatballs halfway at 5–6 minutes, until exterior is golden and internal temp reads 160°F.
Remove meatballs and rest 5 minutes so juices redistribute; zest a touch more lemon over them before serving.