Gunichi Mikawa was a vice-admiral in the Imperial Japanese Navy (IJN) during World War II. Mikawa was the commander of a heavy cruiser force that defeated the U.S. Navy and the Royal Australian Navy at the Battle of Savo Island in Ironbottom Sound on the night of 8–9 August 1942.

The Battle of Savo Island, also known as the First Battle of Savo Island and in Japanese sources as the First Battle of the Solomon Sea , and colloquially among Allied Guadalcanal veterans as the Battle of the Five Sitting Ducks, was a naval battle of the Solomon Islands campaign of the Pacific War of World War II between the Imperial Japanese Navy and Allied naval forces. The battle took place on 8–9 August 1942 and was the first major naval engagement of the Guadalcanal campaign and the first of several naval battles in the straits later named Ironbottom Sound, near the island of Guadalcanal.