Staff Directory
| Alexis Lang Lunn | Director of Admissions |
| Marie Le Darz | French Teacher, Junior and Middle School |
| Aaron Lee | University Counsellor Academic Advisor |
| Cara Lee | Assistant Director - Student Life, Middle School |
| Jonathan Lee | Humanities, Physical and Health Education Teacher, Middle School |
| Tanya Lee | Humanities Teacher, Middle School |
| Jennifer Leyh | Grade 1 Teacher, Junior School |
| Graham Lilly | Economics Teacher, Senior School |
| Shandra Liss | Former Communications Manager at SMUS. |
| Ally Lord | Reception and Exam Coordinator |
| Rita Lord | Chief Financial Officer |
| Tina Lum | Athletics Coordinator, Senior School |
| Sarah Lund | Admissions Associate, Junior School |
| David Lynch '98 | Social Studies Teacher, Senior School Alumnus, Class of 1998 |
| Susan MacDonald | English Teacher, Senior School |