Nebraska - Significance region: Local
| Lincoln Haymarket Historic District |
| Lincoln Hotel |
| Lincoln Liberty Life Insurance Building |
| Lincoln Telephone & Telegraph Exchange Building in Fairmount |
| Lindsley House |
| Linoma Beach |
| Little Bohemia |
| Logan, The |
| Long Creek School |
| Loup City Township Carnegie Library |
| Lowe and Fair Commercial Block |
| Manley School |
| Maple Grove Sales Pavilion and Farrowing Barn |
| Margaret, The |
| Marquis Opera House |
| Marshall, George A., House |
| Mason City School |
| Masonic Temple |
| Masonic Temple and World Theater Building |
| Mason School |
| Massow, Joachim-Schultz, Charles and Annie, House |
| Mathewson-Gerecke House |
| Maybury-McPherson House |
| McCook Public-Carnegie Library |
| McCook YMCA |
| McCue-Trausch Farmstead |
| McLaughlin-Waugh-Dovey House |
| McWilliams House |
| Meisch House |
| Meisner Bank Building |
| Meisner, George, House |
| Melrose, The |
| Memmen Apartments |
| Memorial Building |
| Menter Farmstead |
| Merchant Park |
| Merrill, Moses, Baptist Camp |
| Meyer and Raapke |
| Midway Ranch House |
| Midwest Theater |
| Minne Lusa Residential Historic District |
| Monroe Congregational Church and New Hope Cemetery |
| Morgan-Fricke House |
| Morrill County Courthouse |
| Moses, G.C., Block |
| Mount Zion Brick Church |
| Moyer Row Houses |
| Municipal Lighting and Waterworks Plant |
| Murphy, William L. and Sydney V., House |
| National Bank of Ashland |
| National Indemnity Company Headquarters |
| Nebraska Buick Auto Company |
| Nebraska City Burlington Depot |
| Nebraska City Historic District |
| Nehawka Public Library |
| Neligh Carnegie Library |
| Nelson Cemetery Walk |
| Nelson Farm |
| Nicholas Street Historic District |
| Norfolk Carnegie Library |
| Norfolk Masonic Temple |
| Normandie Apartments |
| North 24th and Lake Streets Historic District |
| North Broad Street Residential Historic District |
| North Eleventh Street Historic District |
| Northern Natural Gas Building |
| North Platte Commercial Historic District |
| North Platte US Post Office and Federal Building |
| North Presbyterian Church |
| North Seventh Street Historic District |
| Northwestern Bell Telephone Company Regional Headquarters |
| Notre Dame Academy and Convent |
| Nottingham Apartments, The |
| Nuckolls County Courthouse |
| Oakland City Auditorium |
| Oft-Gordon House |
| Ohiowa Public School |
| O. K. Market |
| Old McDonald Farm |
| Old People's Home |
| Olive, Ira Webster, House |
| Olson's Market |
| Omaha Auto Row Historic District |
| Omaha Bolt, Nut and Screw Building |
| Omaha Fire Department No. 5 |
| Omaha Ford Motor Company Assembly Plant |
| Omaha Park and Boulevard System |
| Omaha Power Plant Building |
| Omaha Rail and Commerce Historic District |
| Omaha Star, The |
| O'Neill Carnegie Library |
| On Leong Tong House |
| Orchard Hill Commercial Historic District |
| O'Rourke, Capt. John, House |
| Oshkosh Water Tower |
| Ottawa Block, The |
| Paddock Hotel |
| Palisade and Regent Apartments |
| Palmyra Pioneer Cemetery |
| Park Avenue Apartment District |
Data from United States Park Service and Wikidata
