Melville Island may refer to:

• Melville Island (Australia), in the Northern Territory
• Melville Island (Northwest Territories and Nunavut), in northern Canada
• Melville Island (Nova Scotia), a small island in Halifax Harbour, Nova Scotia, Canada
• Melville Island, a small island in the Discovery Islands near Campbell River, British Columbia, Canada
• Melville Island, a small island near Dundas Island near Prince Rupert, British Columbia, Canada