Crawfish pie is a type of baked savory pie common in the Cajun and Creole cuisine of Louisiana. It is similar in appearance to a pot pie and contains crawfish. The dish is typically served as a hand pie but it can also be made into larger 9-inch pies.

Crawfish pie is prepared by making a roux with bell peppers, onions and celery, the "holy trinity" of Cajun cooking. Seafood stock and cooked crawfish tails are then added to the roux before it is poured into a pie crust. Spices and aromatics, including possibly garlic, black pepper, paprika and parsley, are also included in the roux.

The dish is mentioned in the Hank Williams song "Jambalaya (On the Bayou)", along with other common Cajun dishes such as jambalaya and gumbo.