Lactic Acidosis Support Group ( Lactic-Acidosis)

Langer Giedion Syndrome Association (Langer Giedion Syndrome)

Laurence Moon Bardet Biedl Syndrome (Laurence Moon Bardet Biedl Syndome)

Learning Disabilities Association of Canada (Learning Disabilities, Dyslexia)

Leber's Optic Neuropathy Trust (Leber's Optic Neuropathy)

Lissencephaly Contact Group (Lissencephaly)

Little People of America (Achondroplasia, Dwarfism, Short Stature, Turner Syndrome)

Little People of Canada (Achondroplasia, Dwarfism, Short Stature, Turner Syndrome)

Little People of Ontario (Achondroplasia, Dwarfism, Short Stature, Turner Syndrome)

(Little People of British Columbia) LPBC Society for Short Stature Awareness (Achondroplasia, Dwarfism, Short Stature, Turner Syndrome)

Lowe Syndrome Association Inc. (Lowe Syndrome)

Lupus Canada (Lupus Erythmatosus-SLE)