Sackville, New Brunswick
St. Andrew's Presbyterian Church

Saint John, New Brunswick
The Presbyterian Church of St. John and St. Stephen

Salem, Ontario
Salem Presbyterian Church

Salt Springs, Nova Scotia
St. Luke's Presbyterian Church

Saltfleet, Ontario
Cheyne Presbyterian Church
(See Stoney Creek, Ontario: Cheyne Presbyterian Church)

Sarnia, Ontario
Laurel Lea - St. Mathew's Presbyterian Church
St. Andrew's Presbyterian Church
St. Giles Presbyterian Church

Sault Ste. Marie, Ontario
Victoria Presbyterian Church
Westminster Presbyterian Church

Scarborough, Ontario
Clairlea Park Presbyterian Church
(See Toronto, Ontario: Clairlea Park Presbyterian Church)
Melville Presbyterian Church
(See Toronto, Ontario: Melville Presbyterian Church)

Scotstown, Quebec
St. Paul's Presbyterian Church

Seaforth, Ontario
First Presbyterian Church
Harpurhey Presbyterian Church
(See Seaforth, Ontario: First Presbyterian Church)
Seaforth Presbyterian Church
(See Seaforth, Ontario: First Presbyterian Church)

Shakespeare, Ontario
Shakespeare Presbyterian Church

Shediac, New Brunswick
Knox Presbyterian Church

Sherbrooke, Quebec
St. Andrew's Presbyterian Church

Simcoe, Ontario
St. Paul's Presbyterian Church

Sonya, Ontario
St. Andrew's Presbyterian Church
(See Cresswell, Ontario: St. John's Presbyterian Church)

South Eldon, Ontario
St. Andrew's Presbyterian Church
(See Woodville, Ontario: Woodville Community Presbyterian Church)

South Kinloss, Ontario
South Kinloss Presbyterian Church

South Lancaster, Ontario
St. Andrew's Presbyterian Church
(See Lancaster, Ontario: St. Andrew's Presbyterian Church)

South Monaghan, Ontario
Centreville Presbyterian Church

South Mountain, Ontario
St. Andrew's Presbyterian Church

Southampton, Ontario
St. Andrew's Presbyterian Church

St. Andrew's East, Quebec
St. Andrew's Presbyterian Church

St. Catharines, Ontario
Knox Presbyterian Church
Rockway Presbyterian Church
St. Andrew's Presbyterian Church

St. David's, Ontario
First Presbyterian Church

St. Elmo, Ontario
Gordon Presbyterian Church

St. James, Manitoba
St. James Presbyterian Church
(See Winnipeg, Manitoba: St. James Presbyterian Church)

St. John's, Newfoundland
St. David's Presbyterian Church

St. Mary's, Ontario
First Presbyterian Church
(See St. Mary's, Ontario: St. Mary's Presbyterian Church)
Knox Presbyterian Church
(See St. Mary's, Ontario: St. Mary's Presbyterian Church)
St. Mary's Presbyterian Church

St. Thomas, Ontario
Alma Street Presbyterian Church
Knox Presbyterian Church

Ste.-Foy, Quebec
St. Marc Presbyterian Church

Stewartville, Ontario
Stewartville Presbyterian Church

Stirling, Ontario
St. Andrew's Presbyterian Church

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

Stoney Creek, Ontario
Cheyne Presbyterian Church

Strathroy, Ontario
St. Andrew's Presbyterian Church

Streetsville, Ontario
St. Andrew's Presbyterian Church
(See Mississauga, Ontario: St. Andrew's Presbyterian Church)

Sudbury, Ontario
Parkside Presbyterian Church

Sunbury, Ontario
St Andrew's Presbyterian Church

Sunnidale Corners, Ontario
Zion Presbyterian Church