Sattahip Bay (Thai: อ่าวสัตหีบ, RTGS: Ao Sattahip, pronounced [ʔàːw sàt.tā.hìːp]) is a bay in the east side of the Gulf of Siam or Gulf of Thailand.

Prince Abhakara Kiartivongse (1880–1923), son of King Chulalongkorn, inspected Sattahip Bay in 1922 and saw that it was an ideal place to establish a naval base.

Subsequently, he offered royal land in Sattahip in order to build the present-day naval facilities.

[3] Sattahip Bay lies at the south end of Chonburi Province.

It is open towards the southwest and is bound by limestone rock formations forming peninsulas to the west over Laem Chalak and to the southeast at Khao Chong Khaep.