- LaBonge, Tom
- LaHood, Ray
- Lamont, Ned
- Lampson, Nick
- Landrieu, Mary L
- Landrieu, Mitch
- Lantos, Tom
- Largent, Steve
- Larson, Dan
- Larson, John
- Larson, John B.
- Latvala, Jack
- Lauzen, Chris
- Lawlah, Gloria G
- Leahy, Patrick
- Lee, Barbara
- Lee, Brenda
- Lee, Don
- Lee, Jan
- Lee, Jimmie
- Lee, Michelle
- Lee, Stan
- Lee, Tom
- Lehman, John
- Leonard, Bill
- Leopold, John R
- Leslie, Tim
- Levin, Carl
- Levin, David
- Levy, Steve
- Lewis, Dave
- Lewis, James
- Lewis, John
- Lewis, Ron
- Lieberman, Joe
- Lightford, Kimberly
- Lincoln, Blanche
- Linder, John
- Link, Terry
- Lipinski, William O
- Liu, Carol
- Livingston, David
- Livni, Tzipi
- Lockhart, Becky
- Lockyer, Bill
- Lofgren, Zoe
- Lopez, Linda
- Lott, Trent
- Love, Mary Ann
- Lowenthal, Alan
- Lowey, Nita M
- Lucas, Ken
- Lucio, Eddie Jr
- Lugar, Richard
- Lynch, Jim
- Lynch, Stephen F
