Michigan - Significance region: Local
| Mt. Mercy Academy and Convent |
| Muir Church of Christ |
| Munro-M.A. Hanna Mining Company Office Building |
| Murphy, Timothy, House |
| Murray, James H., House |
| Muskegon South Breakwater Light |
| Muskegon South Pierhead Light |
| Muskegon YMCA Building |
| Mutual Building |
| Nacirema Club |
| Nahma and Northern Railway Locomotive #5 |
| National House |
| Navigation Structures at Frankfort Harbor |
| Navigation Structures at Harbor Beach Harbor |
| Navigation Structures at South Haven Harbor, Michigan |
| Navigation Structures at White Lake Harbor |
| Negaunee Downtown Historic District |
| Negaunee Fire Station |
| Negaunee State Bank Building |
| Nettleton-Cond House |
| New Amsterdam Historic District |
| Newberry, Helen, Nurses Home |
| Newberry, Milo Prentice, House |
| New Bethel Baptist Church |
| New Center Commercial Historic District |
| New Feldtmann Fire Tower |
| New Fort Brady |
| Newton-Allaire House |
| Newton, George, House |
| Nice, Philip, House |
| Nichols Hotel |
| Niles Downtown Historic District |
| Niles Railroad Depot |
| Nims, William Reuben, House |
| Nisbett Building |
| North Ann Arbor Street Historic District |
| Northern Brewery |
| North Jefferson Avenue Historic District |
| Northland Gardens |
| North Lansing Historic Commercial District |
| North Manitou Shoal Light Station |
| North Michigan Avenue Historic District |
| North Milford Village Historic District |
| North Saginaw Road-Salt River Bridge |
| North, Townsend, House |
| Northville Historic District |
| North Watervliet Road-Paw Paw Lake Outlet Bridge |
| North Woodward Congregational Church |
| Norwegian Lutheran Church Complex |
| Nottawa Stone School |
| Nyman, John, House |
| Oaklands, The |
| Oak Ridge Cemetery |
| Oakwood Cemetery Chapel |
| Oakwood Cemetery Mausoleum |
| Ocqueoc Falls Highway-Ocqueoc River Bridge |
| Odd Fellows Valley Lodge No. 189 Building |
| O'Dell, H. Augustus and Agnes Cleveland, House-Inch House |
| Ogilvie Building |
| Ojibway Fire Tower |
| Old Cadillac City Hall |
| Old Central High School |
| Old Fire House No. 4 |
| Old-Merchants National Bank and Trust Co. Building |
| Old Miller Hospital |
| Old US Post Office |
| Old Village Historic District |
| Old West Side Historic District |
| Olin, G. W., House |
| Oliver Street Historic District |
| Olive Township District No. 1 School |
| Omena Historic District |
| Ontonagon Harbor Piers Historic District |
| Ontonagon Lighthouse |
| Ontonagon School |
| Opdyke, Sylvester, House |
| Orchard Beach State Park |
| Orchestra Hall |
| Ortonville Mill |
| Oshtemo Town Hall |
| O'Sullivan, Daniel, House/Halfway House |
| Otsego Hotel |
| Ottawa Beach Historic District |
| Our Saviour's Evangelical Lutheran Church |
| Owosso Downtown Historic District |
| Oxbow Archeological District |
| Oxford Downtown Historic District |
| Paddock, Augustus, House |
| Paddock-Hubbard House |
| Palmer, Albert, House |
| Palmer, Charles, House |
| Palmer, George W., House |
| Palmer, Lorenzo and Ruth Wells, House |
| Palmer Park Boulevard Apartments District |
| Palms, The |
| Pardee, George, House |
| Parents' and Children's Schoolhouse |
| Park Avenue Historic District |
| Park City Historic District |
| Parke Lane Road-Thorofare Canal Bridge |
Data from United States Park Service and Wikidata
