World Heritage letter "M"
- Mesa Verde National Park(United States of America)
- Madara Rider(Bulgaria)
- Medina of Tunis(Tunisia)
- Meidan Emam, Esfahan(Iran, Islamic Republic of)
- Memphis and its Necropolis-the Pyramid Fields from Giza to Dahshur(Egypt)
- Mont-Saint-Michel and its Bay(France)
- Maya Site of Copan(Honduras)
- Megalithic Temples of Malta(Malta)
- Mammoth Cave National Park(United States of America)
- Medina of Fez(Morocco)
- Mount Nimba Strict Nature Reserve(C?te d'Ivoire and Guinea)
- M'Zab Valley(Algeria)
- Monastery of Batalha(Portugal)
- Monastery of the Hieronymites and Tower of Belém in Lisbon(Portugal)
- Mana Pools National Park, Sapi and Chewore Safari Areas(Zimbabwe)
- Monastery and Site of the Escurial, Madrid(Spain)
- Manas Wildlife Sanctuary(India)
- Medina of Marrakesh(Morocco)
- Monuments of Oviedo and the Kingdom of the Asturias(Spain)
- Mudejar Architecture of Aragon(Spain)
- Manú National Park(Peru)
- Mausoleum of the First Qin Emperor(China)
- Mogao Caves(China)
- Monticello and the University of Virginia in Charlottesville(United States of America)
- Mount Taishan(China)
- Manovo-Gounda St Floris National Park(Central African Republic)
- Medieval City of Rhodes(Greece)
- Medina of Sousse(Tunisia)
- Meteora(Greece)
- Mount Athos(Greece)
- Monastery of Alcobaça(Portugal)
- Mosi-oa-Tunya / Victoria Falls(Zambia and Zimbabwe)
- Monasteries of Daphni, Hosios Louckas and Nea Moni of Chios(Greece)
- Mount Huangshan(China)
- Mines of Rammelsberg and Historic Town of Goslar(Germany)
- Maulbronn Monastery Complex(Germany)
- Monastery of Horezu(Romania)
- Mountain Resort and its Outlying Temples, Chengde(China)
- Messel Pit Fossil Site(Germany)
- Millenary Benedictine Abbey of Pannonhalma and its Natural Environment(Hungary)
- Monasteries of Haghpat and Sanahin (Armenia)
- Mount Emei Scenic Area, including Leshan Giant Buddha Scenic Area (China)
- Macquarie Island(Australia)
- Maritime Greenwich(Britain)
- Medieval Town of Toruń(Poland)
- Medina of Tétouan (formerly known as Titawin)(Morocco)
- Mill Network at Kinderdijk-Elshout(Netherlands)
- Morne Trois Pitons National Park(Dominica)
- Mount Kenya National Park / Natural Forest(Kenya)
- Miguasha National Park(Canada)
- Mount Wuyi(China)
- Mountain Railways of India (India)
- Museumsinsel (Museum Island), Berlin(Germany)
- My Son Sanctuary(Viet Nam)
- Major Town Houses of the Architect Victor Horta (Brussels) (Belgium)
- Mir Castle Complex(Belarus)
- Monastery of Geghard and the Upper Azat Valley(Armenia)
- Monastic Island of Reichenau(Germany)
- Mount Qincheng and the Dujiangyan Irrigation System(China)
- Masada (Israel)
- Medina of Essaouira (formerly Mogador) (Morocco)
- Mining Area of the Great Copper Mountain in Falun(Sweden)
- Mahabodhi Temple Complex at Bodh Gaya (India)
- Minaret and Archaeological Remains of Jam (Afghanistan)
- Mapungubwe Cultural Landscape (South Africa)
- Matobo Hills (Zimbabwe)
- Mausoleum of Khoja Ahmed Yasawi (Kazakhstan)
- Monte San Giorgio(Switzerland)
- Madriu-Perafita-Claror Valley (Andorra)
- Medieval Monuments in Kosovo(Serbia)
- Muskauer Park / Park Muzakowski(Germany and Poland)
- Museum-City of Gjirokastra(Albania)
- Malpelo Fauna and Flora Sanctuary(Colombia)
- Mehmed Paša Sokolović Bridge in Višegrad(Bosnia and Herzegovina)
- Mantua and Sabbioneta(Italy)
- Mount Sanqingshan National Park(China)
- Melaka and George Town, Historic Cities of the Straits of Malacca(Malaysia)
- Monarch Butterfly Biosphere Reserve(Mexico)
- Mount Wutai(China)