- La Russa, Tony
- Laaksonen, Antti
- Labonte, Bobby
- LaBoy, Travis
- Lacey, Jacob
- Lacina, Corbin
- Lack, Eddie
- Lackey, John
- Lacko, Lukas
- Lacoste, Rene
- Lacroix, Eric
- Ladd, Andrew
- Laettner, Christian
- LaFell, Brandon
- Laffey, Aaron
- Lagasse, Scott, Jr.
- Lagat, Bernard
- Lago, Scotty
- Laich, Brooks
- Laird, Gerald
- Laird, Martin
- Lajoie, Nap
- Lake, Carnell
- Laker, Tim
- Lalas, Alexi
- Lalime, Patrick
- Lally, Andy
- Lamb, David
- Lamb, Doron
- Lamb, Jeremy
- Lambo, Anthony
- Lancaster, Neal
- Landeskog, Gabriel
- Landeta, Sean
- Landis, Floyd
- Landolt, Dennis
- Landri, Derek
- Landry, Carl
- Landry, Dawan
- Landry, LaRon
- Landry, Tom
- Landsberger, Mark
- Lane, Dick
- Lane, Marlin
- Lang, Kenard
- Lang, Max
- Lang, Robert
- Lang, T.J.
- Langdon, Trajan
- Langenbrunner, Jamie
- Langer, Jim
- Langford, Kendall
- Langford, Reshard
- Langkow, Daymond
- Lanier, Willie
- Lankford, Ray
- Lankster, Ellis
- Lannan, John
- Lansing, Mike
- Lantz, Stu
- Lapchick, Joe
- Lapentti, Nicolas
- Laperriere, Ian
- Lapierre, Maxim
- Lapointe, Martin
- LaPorta, Matt
- Laptad, Jake
- Laraque, Georges
- Larionov, Igor
- LaRoche, Adam
- LaRose, Chad
- Larsen, Julie
- Larsen, Philip
- Larsen, Spencer
- Larsen, Ted
- Larsson, Johanna
- Larue, Jason
- Lary, Yale
- Lasorda, Tommy
- Lassiter, Kwamie
- Latendresse, Guillaume
- Latos, Mat
- Lattimore, Jamari
- Laurinaitis, James
- Lauvao, Shawn
- Lavarias, Aaron
- Lavelli, Dante
- Laver, Rod
- Law, Acie
- Law, Ty
- Lawrence, Brian
- Lawrence, Matt
- Lawrence, Mike
- Laws, Trevor
- Lawson, Chris
- Lawson, Manny
- Lawson, Ty
- Lawton, Matt
- Laycock, Jimmye
- Layne, Bobby
- Lazzeri, Tony
- Leach, Mike
- Leach, Vonta
- Leadbetter, David
- Leaf, Ryan
- League, Brandon
- Leake, Mike
- Lebda, Brett
- Leber, Ben
- Leblanc, Louis
- LeBlanc, Peter
- Lecavalier, Vincent
- Lechler, Shane
- LeCure, Sam
- Leddy, Nick
- Ledee, Ricky
- Lee, Amp
- Lee, Andy
- Lee, Butch
- Lee, Carlos
- Lee, Charles
- Lee, Cliff
- Lee, Courtney
- Lee, David
- Lee, Deborah
- Lee, Derrek
- Lee, Donald
- Lee, James
- Lee, Jenny
- Lee, Jimmy
- Lee, John
- Lee, Lisette
- Lee, Malcolm
- Lee, Pat
- Lee, Patrick
- Lee, Sean
- Lee, Travis
- Leetch, Brian
- Leeuwenburg, Jay
- Lefebvre, Sylvain
- Lefeged, Joe
- LeFevour, Dan
- Leffler, Jason
- Leftwich, Byron
- Legace, Manny
- LeGree, Mark
- Legursky, Doug
- Legwand, David
- Lehman, Tom
- Lehtinen, Jere
- Lehtonen, Kari
- Leicht, Stephen
- Leighton, Michael
- Leinart, Matt
- Leino, Ville
- Leipheimer, Levi
- Leishman, Marc
- Leiter, Al
- Lemieux, Claude
- Lemieux, Mario
- Lemon, Bob
- Lemon, Jim
- Lenglen, Suzanne
- Lenon, Paris
- Leonard, Brian
- Leonard, Justin
- Leonard, Kawhi
- Leonard, Sugar Ray
- Leonhard, Jim
- Lepage, Kevin
- Lepchenko, Varvara
- Lepisto, Sami
- Lepsis, Matt
- Leroux, Chris
- Leschyshyn, Curtis
- Leskanic, Curtis
- Leslie, C.J.
- Leslie, Travis
- Lester, Jon
- Lester, Ronnie
- Letang, Kris
- Letestu, Mark
- Lett, Leon
- Leuer, Jon
- Levens, Dorsey
- Levi, Wayne
- Levin, Spencer
- Levine, Al
- Levitre, Andy
- LeVoir, Mark
- Levy, DeAndre
- Levy, Marv
- Lewandoski, Charles
- Lewis, Andrew
- Lewis, Bill
- Lewis, Butch
- Lewis, Chad
- Lewis, Colby
- Lewis, Darren
- Lewis, Dion
- Lewis, Fred
- Lewis, J L
- Lewis, Jack
- Lewis, Jamal
- Lewis, Jeff
- Lewis, Jermaine
- Lewis, Keenan
- Lewis, Kendrick
- Lewis, Kevin
- Lewis, Marcedes
- Lewis, Marvin
- Lewis, Michael
- Lewis, Mo
- Lewis, Myron
- Lewis, Rashard
- Lewis, Ray
- Lewis, Thaddeus
- Lewis, Trevor
- Lewis, Trey
- Leyland, Jim
- Li Na
- Li, Na
- Lichtensteiger, Kory
- Lickliter, Frank
- Liddell, Chuck
- Lidge, Brad
- Lidle, Cory
- Lidstrom, Nicklas
- Lieber, Jon
- Lieberman-Cline, Nancy
- Liefer, Jeff
- Lietzke, Bruce
- Liggins, DeAndre
- Light, Matt
- Lighty, David
- Liles, John-Michael
- Lilja, Andreas
- Lilja, Ryan
- Lillibridge, Brent
- Lilly, Bob
- Lilly, Ted
- Lima, Jose
- Lin, Jeremy
- Lincecum, Tim
- Lincoln, Brad
- Lincoln, Mike
- Lind, Adam
- Lindell, Rian
- Linden, Trevor
- Lindley, Leta
- Lindley, Trevard
- Lindor, Francisco
- Lindsay, Bill
- Lindsay, Everett
- Lindsey, Korey
- Lindsey, Lori
- Lindsey, Steve
- Lindstrom, Matt
- Linebrink, Scott
- Lintelman, Bud
- Liriano, Francisco
- Lisicki, Sabine
- Litsch, Jesse
- Little, Earl
- Little, Greg
- Little, Larry
- Little, Leonard
- Littler, Gene
- Liuget, Corey
- Livingston, Shaun
- Ljubicic, Ivan
- Llamosa, Carlos
- Llodra, Michael
- Lloyd, Brandon
- Lloyd, Carli
- Lloyd, Graeme
- Lloyd, Greg
- Lloyd, Pop
- Loadholt, Phil
- Loaiza, Esteban
- Lobo, Rebecca
- Lochte, Ryan
- Locke, Derrick
- Locker, Jake
- Lockette, Ricardo
- Lockhart, Keith
- Locklear, Sean
- Lockley, Michael
- Lockley, Mike
- Loe, Kameron
- Loeffler, Cullen
- Lofton, Curtis
- Lofton, Justin
- Lofton, Kenny
- Logan, Boone
- Logan, Mike
- Logan, Stefan
- Logano, Joey
- Lohse, Kyle
- Lombardi, Ernie
- Lombardi, Vince
- Lonard, Peter
- London, Mike
- Loney, James
- Long, Carl
- Long, Chris
- Long, Howie
- Long, Jake
- Long, Jeff
- Long, Johanna
- Long, Kevin
- Long, Patrick
- Long, Terrence
- Longley, Luc
- Longoria, Evan
- Longwell, Ryan
- Looker, Dane
- Looper, Braden
- Lopez, Al
- Lopez, Albie
- Lopez, Brook
- Lopez, Feliciano
- Lopez, Felipe
- Lopez, Javier
- Lopez, Javy
- Lopez, Jose
- Lopez, Jose Luis
- Lopez, Mendy
- Lopez, Nancy
- Lopez, Raul
- Lopez, Robin
- Lopez, Wilton
- Loretta, Mark
- Lott, George
- Lott, Ronnie
- Louis, Lance
- Louis, Martin St.
- Love, Davis III
- Love, Kevin
- Love, Kyle
- Lovejoy, Ben
- Lovell, Mike
- Low, Reed
- Lowe, Derek
- Lowe, Mark
- Lowe, Sean
- Lowell, Mike
- Lowery, Dwight
- Lowery, Steve
- Lowrie, Jed
- Lowry, Dave
- Lowry, Kyle
- Lu, Yen-Hsun
- Lucas, Al
- Lucas, Anthony
- Lucas, John, III
- Lucas, Justin
- Lucas, Maurice
- Lucas, Ray
- Lucic, Milan
- Lucic, Mirjana
- Luck, Andrew
- Luckman, Sid
- Lucroy, Jonathan
- Ludwick, Ryan
- Lue, Tyronn
- Luebke, Cory
- Lugo, Julio
- Lumpkin, Kregg
- Lund, Zach
- Lundqvist, Henrik
- Lunn, Karen
- Luongo, Roberto
- Lupul, Joffrey
- Lutrus, Scott
- Lydman, Toni
- Lyght, Todd
- Lyle, Rick
- Lyle, Sandy
- Lyman, Dustin
- Lynch, Corey
- Lynch, George
- Lynch, John
- Lynch, Marshawn
- Lyon, Brandon
- Lyons, Mike
- Lyons, Ted
- Lysacek, Evan