- Kach, A Wade
- Kaine, Tim
- Karnette, Betty
- Kasemeyer, Edward J
- Keenan, Kathleen
- Keller, Ric
- Kelley, Delores G
- Kelley, Pat
- Kelley, Steve
- Kelly, Dan
- Kelly, Gary
- Kelly, Jim
- Kelly, Kevin
- Kelly, Raymond W.
- Kempthorne, Dirk
- Kennedy, Edward M.
- Kennedy, Kenneth
- Kennedy, Patrick J
- Kennedy, Victoria Reggie
- Kennedy, Yvonne
- Kenney, Bill
- Keogh, Bill
- Kerry, John
- Khamenei, Ayatollah Ali
- Ki-moon, Ban
- Kilpatrick, Carolyn C
- Kilpatrick, Kwame
- King, Barbara
- King, Brad
- King, Keith
- King, Peter T
- King, Phil
- King, Steve
- Kingston, Jack
- Kirk, Mark Steven
- Kirk, Nancy
- Kirk, Ruth M
- Kirkley-Bey, Marie
- Kissinger, Henry
- Kittleman, Robert H
- Klein, Jeff
- Klein, Ron
- Kline, Adam
- Kline, John
- Knabe, Don
- Kneeland, Richard
- Knollenberg, Joe
- Kohl, Herb
- Kolbe, Jim
- Kopp, Nancy K
- Koretz, Paul
- Kosmas, Suzanne M
- Kravitz, Dick
- Krysiak, Carolyn J
- Kucinich, Dennis J
- Kuehl, Sheila
- Kyl, Jon
