The Kaman SH-2G Super Seasprite is an American ship-based helicopter with anti-submarine, anti-surface threat capability, including over-the-horizon targeting. This aircraft extends and increases shipboard sensor and weapon capabilities against several types of enemy threats, including submarines of all types, surface ships, and patrol craft that may be armed with anti-ship missiles. It was originally developed for the United States Navy in the 1980s as a reengined and updated version of the older Kaman SH-2 Seasprite which had been serving since the 1960s in a variety of versions. The G model was an evolution of the SH-2F, which was an important ASW aircraft for naval vessels that could not manage a larger helicopter. The SH-2G entered service in the 1980s and served until 2001 with the U.S. Navy. It went on to serve in several other Naval forces into the 21st Century and is still in active service in several countries.

The SH-2G's primary missions include anti-submarine and anti-surface warfare, anti-ship missile defense, and anti-ship surveillance and targeting. Secondary missions may include medical evacuation, search and rescue, personnel and cargo transfer, as well as small boat interdiction, amphibious assault air support, gun fire spotting, mine detection and battle damage assessment.

In 1985, the SH-2G program was started. The US Navy wanted better anti-submarine capabilities and felt upgrading existing helicopters would be a more cost-effective approach; moreover legacy Knox-class and early "short-hull" Perry-class frigates operating the SH-2F could not operate the larger SH-60B Seahawk. The prototype YSH-2G first flew on 2 April 1985. The prototype was a modified SH-2F fitted with two more powerful General Electric T700-GE-401/401C engines.

The G-model has a reinforced upper fuselage to support the heavier new engines. The SH-2G also has multifunctional displays and new avionic systems. The Navy began receiving Airborne Mine Counter Measures (AMCM) hardware with the Kaman Magic Lantern laser mine detection system in December 1996.

The US Navy's final production order of the SH-2F was in Fiscal Year 1986 with the last six orders switched to the SH-2G variant. The USN SH-2G entered service in 1993.

This section covers operators of SH-2G Super Seasprite variant, for operators of earlier types see the operators section of the SH-2 Seasprite.

In the 1990s, the Royal Australian Navy (RAN) decided that it needed an intermediate helicopter to operate from the Anzac-class frigates and the planned offshore patrol vessel (OPV), a proposed cooperative project with Malaysia; however, due to its size, the OPV could operate only a small helicopter. In 1997, the Australian Government signed a A$667 million contract with Kaman to purchase 11 upgraded Super Seasprites. By 2005, up to 40 deficiencies in the helicopter had been identified, including the inability to operate in bad weather and low-light conditions, and its failure to meet Australian airworthiness standards. The helicopters were initially restricted to transport duties during good weather before being grounded in May 2006. By early 2007, ten Super Seasprites had been delivered to 805 Squadron.

In February 2007, The Australian announced that the Seasprite project was "almost certain to be scrapped". At this point, the project was six years over schedule and its cost had grown to A$1.1 billion, with an additional A$45 million forecast as required for further upgrades. If approved the squadron would still not reach operational status until 2010. The sale or scrapping of the fleet was under consideration, possible replacements included the NHIndustries NH90 or further orders of Sikorsky SH-60 Seahawks. On 25 May 2007, The Age reported the government would continue to support the Seasprite; Defence Minister Brendan Nelson commented that progress on the project was being closely monitored.