Bostrychus expatria is a species of freshwater fish in the family Butidae endemic to Lake Manguao on the island of Palawan in the Philippines.

Despite its size, B. expatriata is predatory, known to feed mostly on the small crustaceans that make the lake's muddy bottom their home.

[2] As a small freshwater fish in an island with rich marine resources, B. expatria has no known commercial value.

[5] Tilapia, a fish known for disrupting and destroying the natural balance of the ecosystems it invades, was introduced into the lake in 1992.

Boroda was derived from the Visayan word borod, which was used by the natives of the lake to refer to goby-like fishes.