In human anatomy, the splenic vein (formerly the lienal vein) is a blood vessel that drains blood from the spleen, the stomach fundus and part of the pancreas.

The splenic vein is formed from small venules that leave the spleen.

These include varices in the stomach wall due to hypertension in the short gastric veins and abdominal pain.

This results in gastric varices, in which the treatment of choice would be splenectomy.

The most common cause for splenic vein thrombosis is both chronic and acute pancreatitis.