| Singitic Gulf | |
| Location: | Central Macedonia |
| Coordinates: | 40.2612°N 23.901°W |
| Type: | Gulf |
| Part Of: | Aegean Sea |
| Basin Countries: | Greece |
| Pushpin Map: | Greece |
| Pushpin Map Alt: | Location of the Singitic Gulf within Greece |
| Pushpin Map Caption: | Location of the Singitic Gulf within Greece |
The Singitic Gulf, also known as the Mount Athos Gulf or the Holy Mountain Gulf is a gulf of the Thracian Sea, part of the northern Aegean Sea, in Chalkidiki, Greece.[1] It is bounded by Sithonia in the west, and Mount Athos in the east. The island of Ammouliani sits in the northeastern portion of the gulf along Mount Athos.[2] Many of the monasteries of Mount Athos lie along the shore of the Singitic Gulf.