In a large bowl, combine the finely chopped shrimp, panko breadcrumbs, egg, green onions, minced garlic, mayonnaise, Dijon mustard, Old Bay seasoning, salt, black pepper, and lemon juice.
Mix all ingredients thoroughly until well combined and sticky enough to hold together. If mixture is too wet, add a little more panko breadcrumbs.
Divide the mixture into 8 equal portions and shape each portion into a patty about 3 inches in diameter and 1/2 inch thick.
Preheat the air fryer to 375°F (190°C) for 3 minutes.
Brush both sides of each shrimp patty lightly with olive oil to help them crisp up.
Place the patties in a single layer in the air fryer basket, making sure they do not overlap. You may need to cook in batches depending on the size of your air fryer.
Air fry the shrimp patties at 375°F (190°C) for 6 minutes. Carefully flip each patty over and air fry for an additional 6 minutes or until golden brown and cooked through.
Remove the shrimp patties from the air fryer and let them rest for 2 minutes before serving.
Serve warm with your favorite dipping sauce or a squeeze of fresh lemon.