If you are Pescatarian

Well, according to Webmd.com. Yes! if you are Pescatarian you can eat fish and other seafood.
“Pescatarians have a lot in common with vegetarians. They eat fruits, veggies, nuts, seeds, whole grains, beans, eggs, and dairy, and stay away from meat and poultry. But there's one way they part company from vegetarians: Pescatarians eat fish and other seafood.18 Jul 2019”