Bird Kingdom is an aviary in the tourist district of Niagara Falls, Ontario, Canada.

The attraction encompasses approximately 45,000 square feet (4,200 m2), and houses over 350 birds, the majority of which come from Australia, South America, and Africa.

Bird Kingdom has been voted a top family attraction in Niagara Falls and was inducted into the Trip Advisor Hall of Fame in 2016.

The Small Aviary houses over fifty types of birds, among which are some endangered and rare species.

In 1908, the Spirella Corset Company built a four-story concrete building on the current site of the aviary.

The building was purchased that year by Jacob Sherman, who owned the Niagara Falls Museum.