Oxfordshire on Wikipedia.

Abingdon.
Adderbury. A splendid church, dedicated to St. Mary. The spire. Both © Steve Bulman. Interior view, © Simon Edwards (2011). SP 471 354. Link. Friends Meeting House. Link to external website. Methodist Church. © John French.
Alkerton, dedicated to St. Michael. The West front. Lively carvings on the clerestory. SP 377 429. All © Steve Bulman. Two interior views -1, 2 - both © John Bowdler. Link.
Alvescot, St. Peter. SP 274 045. © Brian J. Curtis.
Ambrosden, dedicated to St. Mary the Virgin. The tower. 164 SP 602 193. Both © Steve Bulman.
Appleton, St. Lawrence. SP 444 015. © Pete Stimpson.
Ardington, Holy Trinity. SU 432 884. © Simon Atkin.
Ardley, St. Mary. From an old postcard, Bulman Collection. A modern view. SP 542 274. © Philip Kapp. Link.
Ashbury, St. Mary the Virgin. Interior view. Both © Simon Edwards. Link (many photos).
Aston Rowant, St. Peter and St. Paul. SU 727 990. © Les Needham. Link.

Balscote (Balscott in Pevsner), dedicated to St. Mary Magdalene. This is a very unusual church, the S. porch having a thin tower above. © Steve Bulman. SP 390 418.
Bampton, St. Mary the Virgin. From an old postcard in Steve Bulman's Collection (frank unclear, perhaps 1911 or 1914).
Banbury.
Barford St. John. © Steve Bulman. SP 439 333.
Barford St. Michael has a fine Norman door. Both © Steve Bulman. SP 432 327.
Beckley, dedicated to St. Mary. Another view. Both © Steve Bulman. SP 562 113.
Begbroke, St. Michael. © Brian J. Curtis. SP 468 139.
Bessels Leigh, St. Lawrence. Interior view. © Aidan Thomson. Link.
Bicester.
Bix, St. James. SU 728 852.  Old Church, abandoned in 1875 after the building of St. James. SU 726 869. Both © Brian J. Curtis.
Black Bourton, St. Mary the Virgin. SP 287 042. © Brian J. Curtis. Another view, priest's door, scratch-dial, two interior views - 1, 2, the font, and an example of the several wall-paintings, all © Steve Bulman (2011). Grade I listed - link.
Bladon, dedicated to St. Martin, is chiefly of note for being the burial place of many of the Churchill family; the monuments include that of Winston Churchill. © Steve Bulman. SP 449 148. Link
Bletchingdon, dedicated to St. Giles. © Steve Bulman. SP 507 180.
Bloxham, dedicated to St. Mary. Among many noteworthy features are the spire, and a fine doorway. © Steve Bulman. SP 430 357. Link.
Bodicote is dedicated to St. John the Baptist. © Steve Bulman. SP 459 377.
Brightwell Baldwin, St. Bartholomew. Interior view. Both © Aidan Thomson. Link.
Brightwell cum Sotwell, St. Agatha. From an old postcard (franked 1906), Bulman Collection. Link.
Brize Norton, St. Britius. © Brian J. Curtis. SP 300 076.
Broughton, dedicated to St. Mary, is close to the splendid moated Broughton Castle, both surrounded by lovely parkland. The spire. © Steve Bulman. SP 418 384.
Broughton Poggs, St. Peter. © Brian J. Curtis. SP 236 038.
Buckland, St. Mary the Virgin. Interior view. Both © Aidan Thomson. Link.
Bucknell, dedicated to St. Peter. A fine doorway. © Steve Bulman. SP 561 256.
Burford.

Cassington, St. Peter. SP 455 106. © Brian J. Curtis. My appreciation to Brian Curtis and Greg Mishevski for identifying the next image of the church, which was originally in the "Unknown" section. Original entry follows - "Andy Davidson is researching for a book on the history of the "Carry On" films. One of them has an aerial shot of a church and is interested in being able to place it. If it's stock footage, then it could be anywhere. If it was taken especially for the film, then it's likely to be in Berkshire, or nearby. Can you help?"
Chalgrove, St. Mary. From an old postcard in Reg Dosell's Collection. A modern view, and an interior view, both © Aidan Thomson. Link.
Charlbury, St. Mary the Virgin. From an old postcard (franked 1908), Bulman Collection. Link.
Checkendon, St. Peter and St. Paul. SU 663 831. © Nick Hopton. Link.
Chesterton, St. Mary. A lovely view in winter. The "mass" or scratch dial. SP 562 214. All © Andy Johnson.
Chinnor, St. Andrew. SP 757 009. Methodist Church, originally the Bourne Memorial Chapel (Primitive Methodist), 1875. SP 754 009. Congregational Church. SP 756 013. Link. All © Les Needham.
Chipping Norton, St. Mary. From an old postcard in Reg Dosell's Collection. Link. Former Salvation Army Citadel, now Chipping Norton theatre. © Rob Brettle. Baptist Church. © Graeme Harvey. Kingdom Hall of Jehovah's Witnesses. © Steve Bulman (2011).
Churchill, All Saints (C). SP 283 240. Grade II* listed - link. Old Church (K) - only the chancel survives, which latterly served as a mortuary chapel. The door. SP 279 245. Grade II listed - link. Methodist Church. SP 280 242. All © Steve Bulman (2011).
Clanfield, St. Stephen. SP 283 021. © Brian J. Curtis. The following are all © Steve Bulman (2011) - another view. An unusual feature is a statue of the saint high up on the turret-stair. The doorway has a Norman tympanum. I didn't see the scratch-dial during my visit, only when processing the photo - here's an enlargement. Two interior views - 1, 2, the squint, and the font. The columns have nice Norman capitals. This isn't mentioned by Pevsner. Grade II* listed - link. Methodist Church. SP 284 017. © Steve Bulman (2011).
Claydon is dedicated to St. James. © Steve Bulman. SP 457 501.
Clifton Hampden, St. Michael and All Angels. Another view, and an interior view. SU 579 942. All © Dave Westrap. Link1. Link2.
Coleshill, All Saints. © Simon Edwards. Grade II* listed- link.
Cottisford, St. Mary the Virgin. Link is to external web-site.
Cropredy, dedicated to St. Mary. The tower. Both © Steve Bulman. 151 SP 469 468.
Crowell, The Nativity of The Virgin Mary. Les explains that an article in the church claims that the dedication is an interesting example of the original Catholic dedication surviving to the present day. However, see the link which describes the dedication as just St. Mary the Virgin. Another view. SU 744 997. Both © Les Needham. Link.
Crowmarsh Gifford, St. Mary Magdalen. © Brian J. Curtis.SU 614 892.
Cuddesdon, All Saints. Interior view. Both © Aidan Thomson.
Cumnor, St. Michael. Interior view. Both © Aidan Thomson. Link.

Deddington.
Dorchester on Thames, Abbey Church of St. Peter and St. Paul. © Chris Emms (2009). Another view, and two interior views - 1, 2, all © Dave Westrap (2009). Link1. Link2. Link3. St. Birinus (R.C.). © Chris Emms (2010). My appreciation to Geoff Pick for advising that this had been incorrectly listed under Dorchester, Dorset. Link.
Ducklington, St. Bartholomew. From an old photo (Colin thinks perhaps 1930's) in Colin Waters' Collection. Link.
Duns Tew, dedicated to St. Mary Magdalene. © Steve Bulman. 164 SP 457 285.

Easington, St. Peter. Interior view. Both © Aidan Thomson.
East Lockinge, All Saints. From an old postcard in Steve Bulman's Collection. Link.
Emmington, the former St. Nicholas, made redundant in 2003. SP 743 024. © Stuart Mackrell. Link1. Link2.
Epwell, dedicated to St. Anne. SP 353 405. © Steve Bulman. Two further views - 1, 2, and two of the interior - 1, 2, all © John Bowdler. The font, tentatively ascribed to the C14 by Pevsner. © John Bowdler.
Ewelme, St. Mary the Virgin. From an old postcard (franked 1926), Bulman Collection. Link.
Eynsham, St. Leonard. © Brian J. Curtis. SP 433 092.

Faringdon, All Saints. Interior view, a side chapel, and the font. SU 288 957. All © Steve Bulman (2011). Link. Grade I listed - link (where it's called Great Faringdon).
Finmere, dedicated to St. Michael. © Steve Bulman. SP 637 332. Link.
Finstock, Holy Trinity. Brian tells me that the adult T.S. Eliot was baptised here on June 29, 1927. Mausoleum to the du Cros family. Both © Brian J. Curtis. 164 SP 362 166.
Fringford, dedicated to St. Michael and All Angels. © Steve Bulman. 164 SP 291 606. Link.
Fyfield, St. Nicholas. Another view, showing a blocked doorway. SU 423 989. Link. Fyfield Baptist Chapel. SU 422 984. All © Steve Bulman (2011).

Glympton, St. Mary. © Brian J. Curtis. 164 SP 424 218.
Godington, Holy Trinity. Link is to external web-site.
Goring Heath, St. John the Baptist. © Derek Collier.
Great Bourton is dedicated to All Saints, and possesses a most unusual lychgate. Both © Steve Bulman. 151 SP 455 455.
Great Haseley, St. Peter. From an old postcard in Reg Dosell's Collection - note that the card calls it just Haseley. Link.
Great Rollright, St. Andrew. The famous Rollright stone circle can also be easily visited from here. © Steve Bulman. 151 SP 327 316.
Great Tew, St. Michael, close to the picturesque village of Great Tew. SP 399 289. © Steve Bulman. Another view, and an interior view, both © Aidan Thomson.
Grove, St. John the Baptist. SU 402 905. © Roy Graham.

Hailey, St. John the Evangelist. © Brian J. Curtis. 164 SP 354 126. Link.
Hampton Gay, St. Giles. 164 SP 485 165. © Brian J. Curtis. Another view. © Chalmers Cursley. Interior view. © Aidan Thomson. Link.
Hampton Poyle, St. Mary the Virgin. Interior view. Both © Aidan Thomson.
Hardwick, St. Mary. Link is to external web-site.
Headington, St. Andrew. From an old postcard, Bulman Collection. Link.
Hempton, St. John the Evangelist. © Steve Bulman. 151 SP 444 319.
Henley-on-Thames, St. Mary the Virgin. From an old postcard (franked 1909), Bulman Collection. Two modern views, 1, 2. Both © Mike Rice. Link.
Hethe, dedicated to St. Edmund and St. George. The entrance. © Steve Bulman. 164 SP 593 294. Link.
Highmoor Cross, St. Paul. Another view. SU 700 843. Both © Les Needham.
Hook Norton, a fine church dedicated to St. Peter. The tower. Both © Steve Bulman. Interior view, © Simon Edwards (2011). SP 355 332.
Horley has the unusual dedication of St. Ethelreda. The west front. Both © Steve Bulman. SP 417 441.
Hornton, dedicated to St. John the Baptist. The tower. Both © Steve Bulman. SP 393 450.
Horton-cum-Studley, dedicated to St. Barnabas. © Steve Bulman. SP 593 125.

Idbury, St. Nicholas, which has a fine, blocked Norman doorway, and an unusual tomb in the churchyard. All © John Salmon.
Iffley, the splendid St. Mary. From an old postcard, Bulman Collection. Link.
Islip, dedicated to St. Nicholas. The tower. Both © Steve Bulman. SP 526 140.

Kencot, St. George. © Brian J. Curtis. SP 254 047.
Kidlington, St. Mary. Interior view. Both © Aidan Thomson. Link.
Kingham, St. Andrew. Another view. SP 258 237. Both © Steve Bulman (2011). Link. Grade II* listed - link.
Kingston Bagpuize, St. John the Baptist. © Chris Emms (2011). Link. Grade II listed - link.
Kingston Blount, former chapel, now a private residence. SU 739 994. © Les Needham. Janet Gimber advises that this was St. John's Church (1877, CoE).
Kirtlington, St. Mary the Virgin. Interior view. Both © Aidan Thomson. Link.

Langford, St. Matthew. © Brian J. Curtis. SP 249 025.
Launton, dedicated to St. Mary. © Steve Bulman. SP 603 228.
Lew, Holy Trinity (1841). © Chris Emms (2011). Grade II listed - link.
Lewknor, St. Margaret. SU 716 977. © Les Needham. Link.
Little Rollright has a charming little church, dedicated to St. Philip. © Steve Bulman. SP 294 302.
Little Wittenham, St. Peter. © Kit Heald. Another view. © Chris Emms (2010). Link.
Littleworth, Holy Ascension. Another view, and two interior views - 1, 2. SU 312 971. All © Steve Bulman (2011). Link. Grade II listed - link.
Longcot, St. Mary the Virgin. Another view and an interior view, all © Simon Edwards. Grade II* listed - link.
Lower Heyford, dedicated to St. Mary. © Steve Bulman. SP 485 249.

Mapledurham, St. Margaret. Mainly 14th and 15th century, with a major restoration in 1863. SU 670 766. © Nick Hopton. Link.
Marcham, All Saints. © Bernard Cole.
Milton, dedicated to St. John the Evangelist (church notice board) or St. Mary (Pevsner). © Steve Bulman. SP 451 351.
Milton-under-Wychwood, St. Simon and St. Jude. © Peter Morgan. Link.
Minster Lovell, St. Kenelm. © Brian J. Curtis. SP 325 115.
Mixbury. Dedicated to All Saints. The tower. © Steve Bulman. SP 610 340. Link.
Mollington, dedicated to All Saints. © Steve Bulman. SP 443 476.

Nether Worton, another lovely little church. © Steve Bulman. SP 426 302.
Nettlebed, St. Bartholomew. © Brian J. Curtis. SU 698 867.
Newton Purcell, St. Michael and All Angels. Link is to external web-site.
Noke, dedicated to St. Giles. SP 544 132. © Steve Bulman.
North Aston, an otherwise fine church is spoiled by the overwhelming presence of North Aston Hall. The gap between hall and church is barely wide enough to allow passage between the two. Dedicated to St. Mary. © Steve Bulman. 164 SP 480 289.
North Leigh.

Over Worton, dedicated to Holy Trinity. © Steve Bulman. 164 SP 430 292.
Oxford.

Piddington, St. Nicholas. There is an improbably thin door, visible in the previous photo, with a close-up here. The door is about as wide as ones shoulders. © Steve Bulman. 164 SP 640 170.
Pusey, All Saints. Interior view. Both © Aidan Thomson. Link.

Radley, St. James the Great. © Chris Emms (2009). Link.
Rotherfield Greys, St. Nicholas. Mostly dated to a mid-Victorian re-build. SU 727 823. © Nick Hopton. Link.
Rousham, St. James. An unusual recessed tomb. Both © John Salmon.