| Name, Place, or Title |
Born |
Died |
Noted |
| Nacogdoches County | | | 23 |
| Nadah (se: Parker, Cynthia Ann) | | | 0 |
| Naional Cattlemen's Association, The | | | 46 |
| National Barn Dance, The (Radio) 1924-68) | | | 06, 16 |
| National Cowboy and Western Heritage Museum (Oklahoma City, OK) | - | - | 04, 17, 33, 34 |
| National Indian Memorial (1911) | | | 49 |
| National Rodeo Hall of Fame | | | 14, 20, 0 |
| Nation, Carrie (Alcohol Reformer) | | | 04, 23, 47 |
| Native American Graves Protection & Repatriation Act (U.S. Law) | | | 21, 46 |
| Navaho Indians | - | - | 38 |
| Navaho Shepherdess (Painting) | - | - | 15 |
| Navajo Canyon (Novel) 1953 | | | 31 |
| Navoou Legion, The (Mormon Militia) | - | - | 15, 29 |
| ND (1870's) | | | 20 |
| NE (1871-78) | | | 44 |
| Neal, Jim | - | - | 28 |
| Nebraska, State of (37th State) "Cornhusker State" | 1867/9 | - | 09 |
| Nebraska, Territory of | 1854/22 | 1867/9 | 22 |
| Ned's Fort (Outlaw Redoubt, OK) | - | - | 18, 41 |
| Nellie In Mexico, 1885 (also published as: Six Months In Mexico) | | | 04 |
| Nellybelle (Jeep) | - | - | 09 |
| Nerve of Foley (Novel) 1900 | | | 52 |
| Nevada Smith (M) 1966 | - | - | 06, 25 |
| Nevada, State of (36th State) "The Silver State" | 1864/44 | - | 40, 44 |
| Nevada, Territory of | 1861/9 | 1864/44 | 09 |
| New Frontier, The (Movie) 1935 | | | 43 |
| New Madrid, MO (largest U.S. earthquake) | | | 50 |
| New Mexico, State of (47th State) "Land of Enchantment" | 1912/1 | - | 01, 07 |
| New Mexico, Territory of | 1850/36 | 1912/1 | 02, 04, 11, 13, 15, 22, 26, 27, 36, 37, 44, 46, 51 |
| New York World (Newspaper) | - | - | 11 |
| Newcomb, George "Bitter Creek" "Slaughter's Kid" (Outlaw) | - | 18 | 03, 13, 18, 28, 35 |
| Newcomb, Tom (Shootist) | | | 44 |
| Newell, O.S. ("nervy" holdup victim) | | | 05 |
| Newman, Paul (Movie Star) | - | - | 11 |
| Newton Massacre, The (KS) | - | - | 34 |
| Nez Perce Indians (OR) | - | - | 09, 20, 32, 48 |
| Nichols, C.W. (Sheriff) | - | - | 03 |
| Nickell, Kels P. (Nestor) | | | 29 |
| Nickell, Willie (Tom Horn's Last Victim) | - | 29 | 29, 47 |
| Night Raiders (M) 1952 | - | - | 08 |
| Night Raiders (Movie) 1952 | | | 43 |
| Ninth U.S. Cavalry (Buffalo Soldiers) | | | 02 |
| Nitroglycerin "Nitro" (an Explosive) | - | - | 16 |
| Nixon, Thomas | - | - | 29 |
| NM | | | 29 |
| NM Terr. | | | 45 |
| No Good Like It Is (Novel -2010) | | | 34 |
| No Name on the Bullet (M) 1959 | - | - | 22 |
| Nolan, Capt. Nicolas M. (U.S. 10th Cavalry) | | | 28, 30, 31, 33 |
| Norris, Benjamin Franklin "Frank" (Author) | 10 | 43 | 10, 43 |
| North Dakota, State of (39th State) "The Peace Garden State" | 1889/44 | - | 44 |
| Northern Cheyenne Indians | - | - | 26 |
| Northern Pacific RR | | | 10, 31 |
| Northwest Company (Fur Company, c. 1810) | | | 03 |
| Nosey Kate (Tombstone Madame) | | | 18 |
| Nuez, Francisco | - | 45 | 45 |
| Nugent, James "Rocky Mountain Jim" | - | - | 25 |
| Nugget (Newspaper) | - | - | 0 |
| Nugget Clark (FC, Sidekick, Movies) | | | 34 |
| Nugget Clark [FC] (see: Waller, Edward C. "Eddy") | | | 0 |
| Null, William (Lynched) | | | 34 |
| NV) | | | 22 |
