Australia IV is a 12-metre class yacht that competed in the 1987 Defender Selection Series.^[1]

Australia IV

Yacht club	Royal Perth Yacht Club
Nation	Australia
Class	12-metre
Sail no	KA–16
Racing career
AC Challenger Selection Series	1987

After being eliminated from the 1987 Defender selection series, Australia IV and her sister ship Australia III were sold to Japanese businessman Masakuzu Kobayashi. Australia IV was renamed Bengal III, painted red and shipped to Japan, where they were to be part of preparations for a proposed Japanese America's Cup Challenge.

As of 2019^[update], Bengal III sits on the hard stand of Miri Marina, Borneo, Malaysia.