Werribee Mercy Hospital, located in Werribee, Victoria on the Princes Highway, about 25 km west of Melbourne, is a public general hospital providing a broad range of services which include surgical, maternity, obstetric care, orthopaedic, ENT, paediatric surgeries, GI oscopy, dialysis, emergency, mental health, aged and palliative care, allied health services and a 24-hour emergency department. As part of the Werribee Mercy Mental Health Program the hospital offers a range of acute and community psychiatric services.

The hospital opened in January 1994 and has rapidly expanded to cope with the expanding population in Melbourne's fast-growing western suburbs. The hospital has nearly finished a $93 million expansion including 56 additional beds, six operating theatres and eight critical care beds, funded by the Victorian Government.

The hospital is administered by Mercy Health, a Catholic not for profit organisation founded by the Sisters of Mercy.

The hospital was often depicted as the 'Mount Thomas Hospital' in the popular local police drama Blue Heelers.

• Werribee Mercy Hospital

37°54′25″S 144°39′09″E / 37.907°S 144.6526°E / -37.907; 144.6526