Two ships of the Royal Australian Navy (RAN) have been named HMAS Ipswich, for the city of Ipswich, Queensland.
- HMAS Ipswich (J186), a Bathurst-class corvette launched in 1941 and transferred to the Royal Netherlands Navy in 1946
- HMAS Ipswich (FCPB 209), a Fremantle-class patrol boat which entered service in 1982 and was decommissioned in 2007