Lachute, Quebec
Margaret Rodgers Memorial Presbyterian Church

Lake Megantic, Quebec
St. Andrew's Presbyterian Church
(See Scotstown, Quebec: St. Paul's Presbyterian Church)

Lancaster, Ontario
St. Andrew's Presbyterian Church

Largie, Ontario
Duff Presbyterian Church

Leamington, Ontario
Knox Presbyterian Church

Leaskdale, Ontario
St. Paul's Presbyterian Church

Lindsay, Ontario
St. Andrew's Presbyterian Church

Lingwick, Quebec
Emanuel Presbyterian Church
(See Gould, Quebec: Emanuel Presbyterian Church)

Listowel, Ontario
Knox Presbyterian Church

Lloydminster, Alberta
Knox Presbyterian Church

London, Ontario
Elmwood Presbyterian Church
New St. James Presbyterian Church
St. George's Presbyterian Church

Long Branch, Ontario
St. James Presbyterian Church
(See Toronto, Ontairo: St. James Long Branch Presbyterian Church)

Loretteville, Quebec
Loretteville Presbyterian Church
(See Valcartier, Quebec: St. Andrew's Presbyterian Church)

Louth, Ontario
First Louth Presbyterian Church
(See St. Catharines, Ontario: Rockway Presbyterian Church)

Lucknow, Ontario
Lucknow Presbyterian Church
South Kinloss Presbyterian Church
(See South Kinloss, Ontario: South Kinloss Presbyterian Church)