Wiltshire on Wikipedia.

Alton Barnes, St. Mary the Virgin. © Roger Jones. Two views © Ian Miller - 1, 2. Link.
Amesbury, St. Mary and St. Melor. From an old postcard (franked 1905), Bulman Collection.
Ashton Keynes, Holy Cross. Interior view. Both © Simon Edwards (2011). Grade I listed - link.
Avebury, St. James, on High Street. From an old postcard in Reg Dosell's Collection. Two modern views - 1, 2, both © Alex Parker. Link.

Bemerton, St. Andrew. From an old postcard in Reg Dosell's Collection - note that the card calls it Bermerton. Was this ever a valid spelling for the place?. Link.
Biddestone, St. Nicholas. © Lesley Anne Petrone.
Bishopstone, St. Mary the Virgin. © John Pope. Two further views - 1, 2, and an interior view, all © Simon Edwards.
Blunsdon, St. Leonard. From an old postcard in Reg Dosell's Collection. A modern view, and an interior view, both © Simon Edwards. Link.
Bradford-on-Avon.
Bratton, St. James. Interior view. Both © Simon Edwards (2011).
Bremhill, St. Martin. © Mark Summers.
Brinkworth, St. Michael and All Angels. Interior view. Both © Simon Edwards (2011). Grade I listed - link (which lists it just as St. Michael).
Broad Blunsdon - see Blunsdon above.
Broad Chalke (or Broadchalke), All Saints. Another view. Both © Caroline Webb.
Broad Hinton, St. Peter ad Vincula. Interior view. Both © Simon Edwards (2011). Link. Grade I listed - link.
Bromham, St. Nicholas. From an old postcard (franked ca. 1910), Graeme Harvey's Collection. Another old postcard was previously in the Unknown section.  From Steve Bulman's Collection, this one has the caption deleted as part of the postcard itself. Identified by Greg Mishevski and Simon Davies. Link. Grade I listed - link.
Broughton Gifford, St. Mary the Virgin. From an old postcard in Reg Dosell's Collection.

Cadley, Christ Church. From an old postcard in Reg Dosell's Collection. Link.
Castle Combe, St. Andrew. Interior view. Both © Bill McKenzie (2010). Another view. © Alex Parker. Link.
Chippenham, St. Andrew. © Mark Summers. Grade II* listed - link. U.R.C. © Graeme Harvey. Former Primitive Methodist Church, now in secular use - identified by Janet Gimber. © Graeme Harvey. Link. The former Wesleyan Methodist Chapel, now in secular use. Identified by Janet Gimber, who advises that it ceased in use as a church in 1909. © Graeme Harvey. Grade II listed - link.
Christian Malford, All Saints. © Mark Summers.
Codford St. Mary, St. Mary. © David Roberts.
Collingbourne Ducis, St. Andrew. © Graeme Harvey. Link.
Collingbourne Kingston, St. Mary. © Graeme Harvey. Link.
Coombe Bissett, St. Michael and All Angels. © Roger Hopkins. An old postcard view, from Reg Dosell's Collection. Link.
Corsham, St. Bartholomew. From an old postcard in Reg Dosell's Collection. Link.
Corsley, St. Margaret of Antioch. 183 ST 829 467. © Mark Summers.
Corston, All Saints. © Bill Henderson.
Coulston, St. Thomas à Becket. © Elizabeth Nash.
Cricklade, St. Sampson. Looking up into the tower, showing the stone vaulting, and the altar. Link. Grade I listed - link. St. Mary (R.C.). Link. Grade II* listed - link, which says this was originally the Anglican Parish Church. United Church. All © Simon Edwards (2012).
Crudwell, All Saints. © Graeme Harvey. An old postcard view, from Reg Dosell's Collection.

Devizes.
Donhead St. Andrew, St. Andrew. From an old postcard in Reg Dosell's Collection. Link.
Durrington, All Saints. From an old postcard, Bulman Collection. Link.

East Knoyle, St. Mary. Interior view. Both © Simon Edwards. Link.
Edington, the Priory Church, dedicated to St. Mary, St. Katherine and All the Saints. © Margaret Woodley. Link.
Erlestoke, Holy Saviour. © Elizabeth Nash. Link.

Fittleton, All Saints. From an old postcard (franked 1910) in Reg Dosell's Collection. Link.
Fyfield, St. Nicholas. © Graeme Harvey.

Hankerton, Holy Cross. ST 971 907. © Graeme Wall.
Hannington, St. John the Baptist. Interior view. Both © Simon Edwards. Link.
Heytesbury, St. Peter and St. Paul. Interior view. Both © Simon Edwards. Link.
Highworth, St. Michael and All Angels. © Simon Edwards. Link.
Hinton Parva (previously known as Little Hinton), St. Swithin. © John Pope. Two further views, 1, 2.  © Stephen Naas. Link.
Holt, St. Katherine. © Mark Summers.

Lacock, St. Cyriac. ST 917 885. Interior view. Both © Aidan Thomson. Another view. © Alex Parker. Link. Cemetery Chapel. ST 914 883. © Steve Bulman. Another view. © Dennis Harper (2011). Lacock Abbey - little remains of the Abbey in this view, though the cloisters are original. Both © Alex Parker. Link.
Latton, St. John the Baptist. © Simon Edwards. Link.
Leigh, All Saints. © Simon Edwards (2011). Link.
Leigh Delamere, St. Margaret. Originally in the "Unknown" section, thanks to Michael Royalton-Kisch for identifying this church. From an old postcard in Steve Bulman's Collection. Link.
Liddington, All Saints. © John Pope. Another view. © Simon Edwards (2011). Link.
Little Hinton - see Hinton Parva, above.
Long Burton, St. James. © Roger Jones.
Longbridge Deverill, St. Peter and St. Paul. Another view. A "gem of a building" says Roger. Consecrated by Thomas Becket in 1162, the church benefited from the generosity of the Thynne family of nearby Longleat House. Both © Roger Hopkins (2010). Interior view, © Simon Edwards (2011). Link. Grade II* listed - link.
Lydiard Millicent, All Saints. © Simon Edwards. Another view, and an interior view, both © Simon Edwards (2011). Link. The church is Grade II* listed - link.
Lydiard Tregoze, St. Mary. Two further views -  1, 2, and an interior view, © Simon Edwards (2011). Link.
Lyneham, St. Michael & All Angels, on Calne Road. © Alex Parker. Link.

Malmesbury.
Marlborough.
Mere, St. Michael the Archangel. St. Mary (R.C.). U.R.C. All © Bill Henderson.
Mildenhall, St. John the Baptist. Interior view. Both © Simon Edwards (2011). Link. Grade I listed - link.
Minety, St. Leonard. © Simon Edwards (2011). Link.
Monkton Farleigh, St. Peter. Another view, two interior views - 1, 2, a window, and the cockerel weather-vane. ST 806 652. All © Steve Bulman (2010).

Norton Bavant, All Saints. The tower (2 views) - 1, 2. Interior view. All © Gene Hawkins. Link.

Ogbourne St. George, St. George. © Simon Edwards (2011). Link.
Orcheston, St. Mary. Previously in the "Unknown" section, Janet Gimber has identified this church from Reg Dosell's postcard collection. Link.

Pewsey, Cemetery Chapel. © Ian Miller. St. John the Baptist (interior view). © Simon Edwards (2011).
Preshute, St. George. Interior view. Both © Graeme Harvey. Another view, © Simon Edwards (2011). Link.
Purton, St. Mary. Another view. Both © Malcolm Rigg. Two further views - 1, 2, both © Bill McKenzie (2010). Another two views - 1, 2, and an interior view, all © Simon Edwards (2011).

Salisbury.
Seend, Church of the Holy Cross. © Mark Summers.
Semley, St. Leonard. © Simon Edwards (2011). Grade II listed - link.
Sevenhampton, St. James. Ian Fleming is buried here. Both © Simon Edwards.
Shalbourne, St. Michael and All Angels. From an old postcard in Reg Dosell's Collection. Link.
Shrewton, St. Mary. From an old postcard in Steve Bulman's Collection. Link.
South Marston, St. Mary Magdalene. Another view. Both © Simon Edwards (2011). Link. Grade I listed - link.
Staverton, St. Paul. Another view, and the tower. The former Methodist Church, currently (2011) up for sale. Another view. All © John Gimber (2011).
Steeple Ashton, St. Mary the Virgin. Interior view, and the font. All © Simon Edwards (2011). Grade I listed - link.
Stourton, St. Peter. ST 339 775. © Bob Feltham. Another view. © Kevin Gordon. Interior view. The font and a tomb. Both © Roger Hopkins. Link.
Stratton St. Margaret, dedicated to St. Margaret. Two further views - 1, 2. All © Simon Edwards. Link.
Sutton Veny, St. John the Evangelist. © David Roberts. Interior view. © Simon Edwards. Link.
Swindon.

Tisbury, St. John the Baptist, burial place of Rudyard Kipling's parents. ST 944 290. Church of the Sacred Heart (R.C.). ST 945 292. Methodist Church. ST 943 294. All © Andrew Ross.
Trowbridge.

Wanborough, St. Andrew. © Simon Edwards (2011). Grade I listed - link.
West Lavington, All Saints. © Elizabeth Nash. Link.
West Overton, St. Michael and All Angels. A fine sundial. Both © Graeme Harvey. Link.
Westbury, All Saints. © Andrew Ross.
Wilcot, Church of the Holy Cross. © Ian Miller. Link.
Wilsford, St. Michael. Interior view. Buried here are members of the Tennant family (residents of the nearby Wilsford Manor), some of whom were the inspiration for characters in "Brideshead Revisited". A handsome memorial to Edward Tennant. All © Roger Hopkins. Link.
Wilton, St. Mary & St. Nicholas. © Mark Summers. An old postcard view (postcard franked 1904), Steve Bulman's Collection, and another from Reg Dosell's Collection.  Link. The ruins of the old church of St. Mary. © Mark Summers.
Wootton Bassett, All Saints. From an old postcard (hand-dated 1905), in Steve Bulman's Collection. The dedication is more usually given as St. Bartholomew and All Saints. A modern view. © Alex Parker. Link. Catholic Church of the Sacred Heart. © Graeme Harvey.
Wroughton, St. John the Baptist and St. Helen. Interior view. Both © Simon Edwards (2012). Link. Methodist Church (1879). © Simon Edwards.
Wyle, St. Mary the Virgin. © Bill Henderson.