Collection place
- Ma'ats, Big Lagoon, Humboldt County1 objects
- Ma-Ayon municipality, Capiz Province, Panay Island12 objects
- Mabtuh Sarqi, Northern Syria4 objects
- Mabuiag Island, Near Western Islands, Torres Strait Islands1 objects
- MacDonald Downs, Northern Territory, Australia46 objects
- Macas, Ecuador7 objects
- Macau (Macao)1 objects
- Macedon (ancient kingdom)14 objects
- Macedonia and Thrace, Greece68 objects
- Machilipatnam, Andhra Pradesh, India1 objects
- Machiqurg, Venezuela5 objects
- Macho de Agua, Michoacán, Mexico1 objects
- Machondo, Angola1 objects
- Machu Picchu, Cusco Region, Southern Peru54 objects
- Mackenzie River, Northwest Territories, Canada25 objects
- Mackey Ranch, Apache County, Arizona17 objects
- Mackie Mound, Linn County, Western Oregon62 objects
- Mackinaw City, Cheboygan County, Michigan1 objects
- Maclean, New South Wales, Australia4 objects
- Macon, Bibb County, Georgia1 objects