| Labs & Centers (Learning Support Centers) | College of San Mateo |
| Labyrinth (Honors Project Newsletter) | College of San Mateo |
| Language Arts Division | Skyline College |
| Language Arts Division | College of San Mateo |
| Late Registration | Cañada College |
| Latin American and Latino/a Studies | Cañada College |
| Le Bulldog | College of San Mateo |
| Leadership (College) | College of San Mateo |
| Learning Center | College of San Mateo |
| Learning Center | Skyline College |
| Learning Center | Cañada College |
| Learning Communities | Cañada College |
| Learning Communities | Skyline College |
| Learning Communities | College of San Mateo |
| Learning Disabilities Assessment Center (LDAC) | College of San Mateo |
| Learning Outcomes | Cañada College |
| Learning Support Centers | College of San Mateo |
| Learning Support Centers Coordination Committee (LSC) | College of San Mateo |
| Legal Assistant | Skyline College |
| Legal Clinic & Resources | Skyline College |
| Legal Studies | Skyline College |
| Letterhead (CSM) | College of San Mateo |
| Letterhead (Electronic) | College of San Mateo |
| LGBTQIA+ Support Services | College of San Mateo |
| Library | College of San Mateo |
| Library | Skyline College |
| Library | Cañada College |
| Library Advisory Committee (LAC) | College of San Mateo |
| Life Sciences | College of San Mateo |
| Literature | Skyline College |
| Literature | College of San Mateo |
| Logos (CSM Logos) | College of San Mateo |
| Logos, Skyline College | Skyline College |
| Lost & Found | College of San Mateo |
| Lost and Found | District Office |
| Lost and Found | Cañada College |
| Lost and Found | Skyline College |
| Lyft Rides for CSM Students | College of San Mateo |
