Members By family name - K
- Kane, Chris
- Kane, Mike
- Kaufman, Gerald
- Kaur, Satvir
- Kawczynski, Daniel
- Kearns, Alicia
- Keegan, Gillian
- Keeley, Barbara
- Keen, Alan
- Kelly, Chris
- Kendall, Liz
- Kennedy, Charles
- Kennedy, Seema
- Kerevan, George
- Kerr, Calum
- Kerr, Stephen
- Khan, Afzal
- Khan, Ayoub
- Khan, Naushabah
- Khan, Sadiq
- Killen, Gerard
- Kinahan, Danny
- Kinnock, Stephen
- Kirby, Simon
- Kirkham, Jayne
- Kitchen, Gen
- Knight, Greg
- Knight, Julian
- Kohler, Paul
- Kruger, Danny
- Kumar, Sonia
- Kumaran, Uma
- Kwarteng, Kwasi
- Kyle, Peter
- Kyrke-Smith, Laura