The Municipality of Sveta Trojica v Slovenskih Goricah (; ) is a municipality in the traditional region of Styria in northeastern Slovenia. The seat of the municipality is the town of Sveta Trojica v Slovenskih Goricah.
Sveta Trojica v Slovenskih Goricah became a municipality in 2006.
In addition to the municipal seat of Sveta Trojica v Slovenskih Goricah, the municipality also includes the following settlements: