The superior phrenic arteries (Latin: sg. arteria phrenica superior) are small blood vessels that arise from the lower part of the thoracic aorta.
These branches are distributed to the posterior part of the upper surface of the diaphragm. They anastomose with the musculophrenic and pericardiophrenic arteries.
The superior phrenic arteries mainly supply the diaphragm, but also participate in providing the suprarenal glands.