L
- La Crête
- La Crête Public School
- La Glace
- Laglace School
- Lac La Biche
- J A Williams High School
- Lac La Biche Off Campus
- Youth Assessment Centre
- Lacombe
- Central Alberta Christian High School
- Crestomere School
- Lacombe Christian School
- Lacombe Composite High School
- Lacombe Outreach
- Parkview Adventist Academy
- Lamont
- Lamont High School
- Lancaster Park
- Guthrie School
- Leduc
- Black Gold Store Front School
- Caledonia Park School
- Christ the King School
- Covenant Christian School
- Leduc Composite High School
- Legal
- École La Citadelle
- Legal School
- Lethbridge
- 5th on 5th Youth Services
- Allan Watson High School
- Allenby Colony School
- Argyll Centre
- Brant Colony School
- Catholic Central High School
- Chin Lakes Colony School
- Coulee Ridge Outreach School
- Gold Ridge Colony School
- Harbour House School
- Hofmann Colony School
- Immanuel Christian High School
- Lethbridge Collegiate Institute
- Mayfield Colony School
- Mialta Colony School
- New Dale Colony School
- River Bend Colony School
- Rock Lake Colony School
- Springridge Colony School
- Taber Adult Learning Centre
- White Lake Colony School
- Wild Rose Colony School
- Winston Churchill High School
- Lindale
- Lindale School
- Linden
- Dr Elliott Community School
- Lloydminster
- Holy Rosary High School
- Lloydminster Comprehensive High School
- Lomond
- Lomond Community School
- Lougheed
- Lougheed School
- Lundbreck
- Livingstone Colony School
- Livingstone School
Read more about this topic: List Of High Schools In Alberta