Phở hải sản is a traditional variety of pho. This type of pho is made with seafood as the basic element. The broth is made from chicken bones and seafood, which give it a slightly sweet flavor. The ingredients used for phở hải sản usually include shrimp, clams, and squid, onions, noodles, mushrooms, and coriander.

The broth is often flavored with spices such as cinnamon, star anise, cloves, and cardamom. Once prepared, the soup is ladled into a deep bowl while still piping hot, and it's then garnished with anything from lime wedges and sliced green onions to bean sprouts and sliced chili peppers.