L
- Josh Labandeira
- Coco Laboy
- Tim Laker
- Larry Landreth
- Bill Landrum
- Chip Lang
- Ryan Langerhans
- Mark Langston
- John Lannan
- Mike Lansing
- Yovanny Lara
- Adam LaRoche
- Bill Laskey
- Vance Law
- Tom Lawless
- Charlie Lea
- Matt LeCroy
- Wilfredo Ledezma
- Bill Lee
- Ron LeFlore
- Dave Leiper
- Mark Leiter
- Denny Lemaster
- Sandy León
- Randy Lerch
- Brad Lidge
- Jeff Liefer
- Ted Lilly
- Larry Lintz
- Felipe Lira
- Bryan Little
- Scott Livingstone
- Graeme Lloyd
- Esteban Loaiza
- Paul Lo Duca
- Nook Logan
- George Lombard
- Steve Lombardozzi
- Bill Long
- Brian Looney
- Felipe López
- Luis Lopez
- Gary Lucas
- Urbano Lugo
- Rob Lukachyk
- Steve Lyons
- Jim Lyttle
Read more about this topic: Washington Nationals All-time Roster