Antrim House is a historic building on Boulcott Street in Wellington, New Zealand. The house was built for Robert Hannah, an Irish immigrant from County Antrim, in 1905. Constructed mainly of kauri and heart totara on concrete foundations, Antrim House remains as a fine example of an Edwardian Italianate house. The two-storey building with tower, topped with a mansard roof, was an impressive residence situated on a large section with garden and out-buildings.
The building is classified as a "Category I" ("places of 'special or outstanding historical or cultural heritage significance or value'") historic place by the New Zealand Historic Places Trust.