| Name, Place, or Title |
Born |
Died |
Noted |
| Kahn, Henry (Gambler, Shooter) | - | - | 27 |
| Kai-Wotche (Kotsoteka Comanche Chief) | | | 39 |
| Kane, Jasper Joseph Inman (Film Director | 12 | 34 | 12, 34 |
| Kansas and Pacific RR | | | 11 |
| Kansas City Stock Yards (MO) | 1871 | 1991 | 0 |
| Kansas City, MO (RR, Cattle, Gambling) | - | - | 11, 22, 29, 46 |
| Kansas Pacific RR | 1870 | 1880 | 21, 36 |
| Kansas Territory (M) 1952 | - | - | 23 |
| Kansas, State of (34th State) "The Sunflower State" | 1861/5 | - | 05 |
| Kansas, Territory of | 1854/22 | 1861/5 | 22 |
| Kansas, Nebraska Act, The (U.S. Law) | - | - | 22 |
| Kansqas City Stock Yards | | | 0 |
| Karl, William "Buckskin Bill" | - | - | 05 |
| Käsebier, Gertrude Stanton (Photographer) | 20 | 41 | 20, 41 |
| Katy (see: Missouri-Kansas-Texas RR) | | | 0 |
| Kay, Mary Ellen (Movie Actress) | - | - | 0 |
| Kealy, James (Deputy Sheriff) | | | 45 |
| Kearney, Kent | - | - | 28 |
| Kearney, Kurt (Deputy Sheriff | | | 28 |
| Kearns, Henry | - | 34 | 34 |
| Keener, John | - | 20 | 20 |
| Keith, Robert Alba (Movie Actor) | 46 | - | 25, 46 |
| Keliher, Timothy (UP RR Special Agent) | - | - | 0 |
| Kelley, Dan (Outlaw) | | | 13 |
| Kelley, Luther Sage (see: Yellowstone Kelley) | | | 0 |
| Kelley, William "Nigger Bill" (Legend Founder) | | | 29 |
| Kellogg, Marcus "Mark" H. (Newspaperman) Little Big Horn | | | 22 |
| Kelly, Charles (Historian) | 5 | - | 05 |
| Kelly, Dog (Mayor of Dodge City, KS) | | | 40 |
| Kelly, Elizabeth Duty (Indian Captive) | - | - | 20 |
| Kelly, Pat (Marshal) Leadville, CO | | | 52 |
| Kelly, W.C. (Constable) | - | - | 27 |
| Kelton, Elmer (Western Author) | 17 | 34 | 17, 34 |
| Kelton, Elmer (Novelist) | | | 0 |
| Kene | | | 40 |
| Kenedy, Spike | - | - | 40 |
| Kennedy, Charles | - | 40 | 40 |
| Kennedy, Spike (Ellsworth, KS) | | | 29 |
| Kentucky Cannibal, The | | | 02 |
| Ketchum, Nellie "Bessie" (Soiled Dove) | - | - | 04 |
| Ketchum, Sam (BJKG, Outlaw, Train Robber) | - | 30 | 28, 29, 30 |
| Ketchum, Thomas Edward "Black Jack" (Leader, Black Jack Ketchum Gang) | 44 | 17 | 17, 27, 28, 36, 44 |
| Kickapoo Indians | | | 24 |
| Kid Curry (Harvey Alexander Logan) [WB, Outlaw] | - | 24 | 05, 09, 10, 13, 16, 21, 23, 24, 25, 26, 27, 30, 35, 37, 38, 41, 46, 48, 50, 52 |
| Kid from Broken Gun (M) 1952 | - | - | 07 |
| Kid Swingle | - | - | 37, 47 |
| Kidder Massacre, The | | | 26 |
| Kidder, Jeff (Lawman) | - | - | 0 |
| Kidder, Lyman (2nd. Lt., U.S. Cavalry) | - | 26 | 26 |
| Kier, Elmira (Soiled Dove) [Glenwood Springs, CO] | - | - | 0 |
| Kile, John | - | - | 29 |
| Killer Miller (See: Miller, James B.) | | | 0 |
| Killer) | | | 13, 14, 31, 34 |
| Killin' Jim (see: Miller, James B.) | | | 0 |
| Kilmer, Val (Movie Actor) | 1959 | | 52 |
| Kilough Massacre (TX, 1838) | | | 40 |
| Kilough Sr., Isaac (Victim) | | | 40 |
| Kilpatrick, Ben "The Tall Texan" (WB, Outlaw) | - | 11 | 01, 11, 19, 27, 48, 50 |
| Kilpatrick, George (Outlaw) | - | - | 46 |
| Kimasumpkin (Cayuse Indian) | - | 22 | 22 |
| Kimball, Hiram (Mail Contractor) | | | 41 |
| Kinf, Francis "Frank" (CA) | | | 27 |
| King of the Bullwhip (Movie) 1950 | | | 21 |
| King of the Cowboys (M) 1943 | - | - | 27, 34 |
| King of the Cowboys (see: Roy Rogers) | | | 0 |
| King of the Cowboys [T} (see: Ringo, John Peters) | | | 0 |
| King of the Frontier Con Men (Soapy Smith) | | | 27 |
| King of the Pecos (Movie) 1936 | | | 34, 43 |
| King of the Rustlers (Nathan D. Champion) WY | | | 15 |
| King of the Saddle (Movie) 1926 | - | - | 04 |
| King Ranch, The (TX) | - | - | 15 |
| King, Billy | - | 45 | 45 |
| King, Doc | - | - | 16 |
| King, Francis Marion "Frank" (Newspaperman) | - | 27 | 32 |
| King, John (Movie Actor) | | | 21, 23 |
| King, Luther (Outlaw) | | | 11 |
| King, Martha (Witness) OK Corral | | | 48 |
| King, Melvin (Corporal, Victim) U.S. Army | - | 4 | 04 |
| King, Nelson (Arms Design Engineer) | - | - | 09, 50 |
| King, Pee Wee (Musician) | - | - | 0 |
| King, Ray (Movie Actor) | | | 23 |
| King, Richard (Captain) [Steamboat Captain, Entrepreneur, Rancher) | 28 | 15 | 28 |
| King, Samuel Houston | - | - | 27 |
| King, Charlie | | | 0 |
| King, John | | | 0 |
| Kinney Gang (see: John Kinney Gang) | - | - | 0 |
| Kinney, John W. (LCW, Outlaw Gang Leader) | - | - | 32 |
| Kinney, L.L. (Express Guard) | - | - | 28 |
| Kinshi, Klaus (Movie Actor?) | - | - | 0 |
| Kiowa Indians | - | - | 16, 26, 39, 48 |
| Kloehr, John J. | - | - | 40 |
| Klokamas (Cayuse Indian) | - | 22 | 22 |
| Knickerbocker Buckaroo, The (1919) silent | | | 49 |
| Knife Chief (Sioux Warrior) | | | 18 |
| Knights of Labor (Mining Union) | | | 35 |
| Knight, John Forest "Fuzzy" (Movie & TV Actor, Sidekick) | 19 | 8 | 19, 30, 32, 43 |
| Knotts, Don (TV Actor) | - | - | 42 |
| Knott, Robert (Writer) | | | 40 |
| Knox, Charles (Bank Robber) | | | 28 |
| Koch, Robert (Physician) | - | - | 12 |
| Koko (horse) | | | 51 |
| Kolpan, Gerald A. | - | - | 0 |
| Krakatoa (Volcano) | - | - | 35 |
| Krempkau, ?? (Constable) | | | 15 |
| Krigbaum, James (night rider) | | | 49 |
| Kristopherson, Kris (Movie Star, Singer) | - | - | 0 |
| Kruling, "Dutch Charlie" | - | - | 18 |
| KS | | | 13, 38 |
| Kuhl, Ben (Stagecoach Robber) | | | 49 |
