| Todd Marriott | Men's Football | 5-10 | 200 | LB | - | Fruit Heights, UT | | 1988 |
| Simi Mapu | Men's Football | 5-11 | 225 | LB | - | Leesville, LA | Leesville High School | 1974 |
| 45 | Mark Madland | Men's Football | 6-1 | 210 | LB | - | Wenatchee, WI | | 1975 |
| 77 | Levi Madarieta | Men's Football | 6-2 | 233 | LB | - | Wheat Ridge, ID | Whest | 2000-2003 |
| 67 | Steve MacKay | Men's Football | 6-1 | 215 | LB | - | Salt Lake City, UT | | 1968 |
| 37 | Jeff Lyman | Men's Football | 6-3 | 233 | LB | - | Salt Lake City, UT | | 1969-1971 |
| 51 | Justin Luettgerodt | Men's Football | 6-3 | 240 | LB | - | Gladstone, OR | Foothill Junior College | 2004-2005 |
| 51 | Josh Lowe | Men's Football | 6-4 | 245 | LB | - | Mesa, AZ | Mountain View High School | 1994 | 1997-2000 |
| 42 | Gary Lovely | Men's Football | 6-1 | 200 | LB | - | San Jose, CA | Foothill Junior College | 2004-2006 |
| 49 | Blake Lord | Men's Football | 6-5 | 190 | LB | Freshman | Salt Lake City, UT | Woods Cross High School | 2013 |
| 68 | Frank Linford | Men's Football | 5-10 | 205 | LB | - | Stockton, CA | | 1974 |
| David Lewis | Men's Football | 6-1 | 200 | LB | - | Orem, UT | | 1989 |
| 53 | Todd Lewis | Men's Football | 6-2 | 217 | LB | - | Orem, UT | Orem High School | 1996 |
| 43 | Jherremya Leuta-Douyere | Men's Football | 6-0 | 236 | LB | Sophomore | Garden Grove, CA | Servite High School | 2012-2013 |
| 31 | Aveni Leung-Wai | Men's Football | 6-1 | 227 | LB | Senior | Aiea, HI | Grossmont Junior College | 2010-2011 |
| 51 | Lene Lesatele | Men's Football | 6-1 | 238 | LB | Freshman | Artesia, CA | Gahr High School | 2011-2012 |
| 56 | Jared Leavitt | Men's Football | 6-3 | 240 | LB | - | Soda Springs, ID | Walla Walla Community College | 1990-1991 |
| 51 | Mike Langford | Men's Football | 6-0 | 205 | LB | - | Tempe, AZ | | 1969 |
| 44 | Ed Lamb | Men's Football | 6-5 | 255 | LB | - | Pleasanton, CA | Ricks Junior College | 1994-1996 |
| Jim Laffin | Men's Football | 5-11 | 190 | LB | - | Duarte, CA | Duarte High School | 1974 |
| Eric Knowles | Men's Football | 6-0 | 200 | LB | - | Sandy, UT | | 1989 |
| 27 | Evan Kleinhenz | Men's Football | 6-0 | 210 | LB | - | Columbus, UT | Columbus North High School | 2007 |
| 21 | Isaac Kelley | Men's Football | 6-4 | 240 | LB | - | American Fork, UT | American Fork High School | 1997-2001 |
| 41 | Bryan Kehl | Men's Football | 6-3 | 231 | LB | - | Salt Lake City, UT | Brighton High School | 2002 | 2005-2007 |
| 4 | Uona Kaveinga | Men's Football | 5-11 | 233 | LB | - | Hawthorne, CA | USC | 2010-2012 |
BYU Fan Store 
From the archives: Come Back, Jack
Softball signs transfer Mylee Davis
