Is mariana sauce the same as cocktail sauce?

No, Mariana sauce and cocktail sauce are not the same.

Mariana sauce is a type of tomato-based sauce that is often used as a base for many other sauces. It's typically made with tomatoes, onions, garlic, and spices.

Cocktail sauce is a creamy, spicy sauce that is often served with seafood, especially shrimp. It is typically made with ketchup, horseradish, lemon juice, and sometimes Worcestershire sauce.

While both sauces can be used with seafood, they have distinct flavors and ingredients.