Place
- Luxembourg City1
- Lyon1
- Maine--Bar Harbor1
- Maine--Kennebec County1
- Maine--Penobscot County1
- Malay Peninsula1
- Malheur National Forest1
- Manila1
- Maple Grove, Minnesota1
- Maple Plain, Minnesota1
- Marble Township1
- Marshfield Township1
- Martinsburg Township1
- Maryland--Harford County1
- Maryland--Montgomery County1
- Maryland--Prince George's County1
- Massachusetts--Medford1
- Mazeppa1
- Mazeppa Township1
- McKenzie River1