Catalpa rescue: The rescue of six Fenian prisoners from Fremantle Prison in Western Australia.

The Catalpa rescue was the escape, on 17–19 April 1876, of six Irish Fenian prisoners from the Convict Establishment, a British penal colony in Western Australia. They were taken on the convict ship Hougoumont to Fremantle, Western Australia, arriving 9 January 1868. In 1869, pardons had been issued to many of the imprisoned Fenians. Another round of pardons was issued in 1871, after which only a small group of "military" Fenians remained in Western Australia's penal system.