Oxford on Wikipedia.

Churches in Headington.
 

Ahmadiyya Muslim Association, on Cowley Road. SP 533 054. © Mehmood Naqshbandi, and reproduced from his website Muslims in Britain.

The former church of All Saints on High Street. On a medieval site, the present building dates from a re-build of 1707-8, necessitated by the collapse of the spire in 1700. Deconsecrated in 1971, it had been the city church since 1896, and now serves as the library for Lincoln College. Two additional views - 1, 2. SP 5148 0623. All © Howard Richter (2016). Another view, © Christopher Skottowe (2009), and from his old postcard collection, another. Link, from which we learn that the first church on the site, soon after the Norman Conquest, was probably converted from domestic buildings. Grade I listed.

Bangladeshi Islamic Education Centre and Mosque on Cowley Road. Interior view. SP 524 058. Both © Mehmood Naqshbandi, and reproduced from his website Muslims in Britain.

Bartlemas Chapel (or St. Bartholomew's Chapel). © Marion Hall. Link.

Central Oxford Mosque Society on Bath Street. SP 525 061. © Mehmood Naqshbandi, and reproduced from his website Muslims in Britain.

Christ Church Cathedral. SP 515 060. © Steve Bulman. Another view, from an old postcard (franked 1908), in Steve Bulman's Collection. Two interior views - 1, 2, both © Charles Clegg (2013). Link.

Church and House of The Divine Love (Unitarian), 27 Percy Street. © unitarian.co.uk. This, and many other old engravings on this website, are reproduced from the downloadable books on the Unitarian Church Headquarters website here. The books are Pictures of Unitarian Churches by Emily Sharpe (1901) and the 1914 edition of Nonconformist Church Architecture by Ronald P. Jones M.A, (Oxon), and the images are reproduced by kind permission of James Barry of Unitarian Church Headquarters. My appreciation also to Mike Berrell for his efforts in this regard.

Cowley Road Methodist Church. SP 525 058. © Mehmood Naqshbandi (2009).

Exeter College Chapel (1854-60, by George Gilbert Scott), interior view. Another interior view. Both © Charles Clegg (2013). Link.

First Church of Christ, Scientist. The outer entrance. Both © Graeme Harvey.

Friends' Meeting House, © Graeme Harvey.

Hertford College Chapel (1908, by Jackson), interior view. Another interior view. Both © Charles Clegg (2013). Link.

Holy Rood (R.C.) on Abingdon Road. © Chris Emms (2011).

Holy Trinity at Headington Quarry. © Marion Hall. Link.

Keble College Chapel (1876, by Butterfield). From an old postcard in Steve Bulman's Collection. A modern view, © David Gallimore. Two interior views - 1, 2, both © Charles Clegg (2013). Link.

Madina Masjid and Muslim Welfare House on Stanley Road. Interior view. SP 529 048. Both © Mehmood Naqshbandi, and reproduced from his website Muslims in Britain.

Magdalen College Chapel, © Steve Bulman.

Merton College Chapel, © Steve Bulman. The following are all © John Bowdler - two further views, 1, 2, an old door, and interior views - 1, 2, the font, a window, roof and the crossing. Link.

New College Chapel. SP 5174 0645. © Christopher Skottowe (1951 or 1952). Grade I listed.

Oratory Church of St. Aloysius Gonzaga (R.C., 1875). Interior view. Both © Graeme Harvey. Another view and interior view, both © Marion Hall. Another interior view, © Charles Clegg (2013). Link.

Oxford Central Mosque on Manzil Way. Another view, and an interior view. SP 532 057. All © Mehmood Naqshbandi, and reproduced from his website Muslims in Britain.

Priory Church of the Holy Spirit (Blackfriars, R.C.) on St. Giles. Interior view. Both © Mike Forbester. Link.

St. Aldate.,© Graeme Harvey. Link. Grade II* listed - link.

St. Columba (U.R.C.) on Alfred Street. © Dennis Harper (2011).

St. Ebbe, © Graeme Harvey. Link. Grade II* listed - link.

St. Edmund of Abingdon and St. Frideswide (R.C.), or Greyfriars, on Iffley Road. Another view. Both © Marion Hall. Link.

St. Giles, © Steve Bulman.

St. Gregory and St. Augustine (R.C.). © Graeme Harvey. Link.

St. James the Apostle on Beauchamp Lane, Cowley. Interior view. Both © Marion Hall. Link. Grade II* listed - link.

St. John the Evangelist, © Marion Hall. Link.

Of the ancient church of St. Martin at Carfax, only the tower remains. A plaque gives a brief history. The grade II listing suggests that there may be a Saxon element in the largely C14 tower. It was restored in 1896; the body of the church was demolished at the same time. The view from the tower shows All Saints, with St. Mary the Virgin behind. SP 5131 0618. All © Martin Richter (2012). Link. The tower is mentioned here on Wikipedia. An excellent article here, with photographs, and engravings of the demolished church, and its predecessor.

The splendid St. Mary at Iffley. SP 527 035. From an old postcard in Steve Bulman's Collection. Previously in the Unknown section, this photo is from Peter Langmaid's Collection. There appear to be some metal frames over some of the nearby graves, which Peter suggests may be body-snatcher deterrents. It was identified by John R. Parker. Link1 - the architecture page is useful too. Link2. The surprisingly short Grade I listing.

St. Mary the Virgin on High Street, © Steve Bulman. An old postcard view, from Reg Dosell's Collection. Interior view, the altar, pulpit and tester, and the font, all © Dennis Harper (2011). The baroque doorway, © Christopher Skottowe (1961). Link. Grade I listed.

St. Mary Magdalen, on Magdalen Street, © Steve Bulman. Another view, the font, and the altar and East Window, all © Dennis Harper (2011). Grade I listed - link.

St. Michael. The tower is dated by Pevsner as c. 1000 - 1050. © Steve Bulman.

St. Michael and All Angels on Marston Road, New Marston. © Marion Hall. Link.

St. Nicholas on Elsfield Road, Old Marston. Interior view. Both © Marion Hall. Link. Grade I listed.

St. Peter's College Chapel, © Graeme Harvey. Link.

The former St. Philip and St. James, now the Oxford Centre for Mission Studies. © David Gallimore. Link.

St. Thomas the Martyr. Another view. Both © Marion Hall. Link. Grade II listed.

Summertown U.R.C. on Banbury Road. © Janet Gimber (2016). Link.

U.R.C. on Collinwood Road, Risinghurst. Another view. SP 558 073. Both © Mehmood Naqshbandi.

Wadham College Chapel (ca. 1610, by William Arnold), interior view. Another interior view. Both © Charles Clegg (2013). Link.

Wesley Memorial Methodist Church.  © Graeme Harvey. Link.

Headington
All Saints on Lime Walk. © Marion Hall. Link.
Corpus Christi (R.C.) on Margaret Road. Interior view. Both © Marion Hall. Link.
Headington Baptist Church. © Marion Hall. Link.
Oxford Crematorium (1939) on Bayswater Road - link is to an external
website, which has photos.
St. Andrew. From an old postcard in Steve Bulman's Collection. A modern view, and an interior view, both © Marion Hall. Link.
St. Mary and St. John on Cowley Road. Another view. Both SP 531 054. © Mehmood Naqshbandi (2009).