The Gulf of Oman or Sea of Oman (Arabic: خَلِيج عُمَان khalīj ʿumān; Persian: دریای عمان daryâ-ye omân) is a gulf that connects the Arabian Sea with the Strait of Hormuz, which then runs to the Persian Gulf. It borders Iran and Pakistan on the north, Oman on the south, and the United Arab Emirates on the west.
- Port of Fujairah, Fujairah, United Arab Emirates
- Khor Fakkan Container Terminal, Khor Fakkan, United Arab Emirates
- Port of Chabahar, Chabahar, Iran
- Port Sultan Qaboos, Muttrah, Oman
In 2018, scientists confirmed the Gulf of Oman contains one of the world's largest marine dead zones, where the ocean contains little or no oxygen and marine wildlife cannot exist. The dead zone encompasses nearly the entire 63,700-square-mile Gulf of Oman. The cause is a combination of increased ocean warming and increased runoff of nitrogen and phosphorus from fertilizers.