Oban on Wikipedia.
 

Associated Presbyterian Church. © Martin Briscoe.

Baptist Church. © Martin Briscoe.

Former CoS, now serves as a Tourist Information Office. © Martin Briscoe. Another view. © Alan Blacklock.

Congregational Church. © Martin Briscoe.

The Kilmore and Oban Corran Esplanade Church. © Martin Briscoe. Another view. © Alan Blacklock.

Free High Church. © Martin Briscoe.

Parish Church. © Martin Briscoe. Another view. © Alan Blacklock.

St. Columba (R.C. Cathedral). © Martin Briscoe. Another view. © Bill McKenzie. Another view. © Peter Amsden. Interior view. © Alan Blacklock.

St. John (Episcopal Cathedral). © Martin Briscoe. Another view. Interior view.  Both © Alan Blacklock.

Salvation Army. © Martin Briscoe.

The following buildings have (or may have been) converted from old churches -  The first, which may be either a converted church, or perhaps just built to look like a church, is now a utilities shop, Another conversion. Confirmation of the status of these buildings, or their former denominations, would be appreciated. Both © Martin Briscoe.