Tartus Governorate, also transliterated as Tartous Governorate, (Arabic: مُحافظة طرطوس / ALA-LC: Muḥāfaẓat Ṭarṭūs) is one of the 14 governorates of Syria. It is situated in western Syria, bordering Latakia Governorate to the north, Homs and Hama Governorates to the east, Lebanon to the south, and the Mediterranean Sea to the west. It is one of the few governorates in Syria that has an Alawite majority. Sources list the area as 1,890 km² or 1,892 km², with its capital being Tartus.
The governorate was historically part of the Alawite State, which existed from 1920–1936.
It was formerly part of Latakia governorate, but was split off circa 1972.
The region has been relatively peaceful during the Syrian civil war, being a generally pro-Assad region that had remained under government control. However in 2013 massacres against Sunni Muslims occurred in Bayda and Baniyas, and a suicide bombing claimed by Islamic State occurred in Tartus in May 2016. Tartus is home to a major Russian naval base.
Tartus comprises roughly half of Syria's Mediterranean coastline; offshore lie five small islands, the largest of which is Arwad. Inland the terrain is mountainous, comprising a section of the Syrian Coastal Mountain Range (Nusayriyah Mountains). The Nahr al-Kabir river forms the border with Lebanon to the south.
Tartus is the regional capital; other major settlements include Al-Hamidiyah, Al Qadmus, Al-Sawda, Ayn ash Shams, Baniyas, Qusaybah and Safita.
The governorate is divided into five districts (manatiq). The districts are further divided into 27 sub-districts (nawahi):
As per the 2004 Syrian census the population was 701,400. A 2011 UNOCHA estimate put the population at 797,000, though this has likely changed since the start of the war.
The majority at 72% are Alawites, 7% Sunni Muslim, 8% Ismaili, and 13% Christian. There is a small Cretan Greek community concentrated in Al-Hamidiyah, the descendants of refugees who fled the Greco-Turkish War of 1897.