The Province of Trieste was a province in the autonomous Friuli-Venezia Giulia region of Italy. Its capital is the city of Trieste.
It had an area of 212 square kilometres and a total population of 234,668. It had a coastal length of 48.1 kilometres.
There were 6 communes in the province.
Coordinates 45°39'0.121" N 13°46'14.361" E