Northumberland on Wikipedia.

Acklington, St. John the Divine. 81 NU 227 019. © Steve Bulman.
Acomb, St. John of Beverley at St. John Lee. NY 933 657. © Bill Henderson (2011). Link.
Allendale.
Alnmouth, St. John the Baptist. © David Gallimore. Link. Methodist Church, founded as Wesleyan in 1891. © Peter Morgan (2009). Two further views - 1, 2. Both © David Gallimore (2009). Hanwick Hall, which Peter advises is "thought to have been Methodist". The same building can be seen from the other side in this old photo. Notwithstanding this, I can find no web text reference to Hanwick Hall, so can you confirm that it was indeed a Methodist Chapel? © Peter Morgan (2009). David Gallimore has sent a photo of Hindmarsh Hall, which is evidently the same building as Hanwick Hall. Previously a granary and corn exchange, it was converted to serve as a church in 1859, in which use it continued until 1876 when St. John was opened. © David Gallimore. Link.
Alnwick.
Amble, St. Cuthbert. © Bill Henderson. All that remains of the cemetery buildings is this arch, which used to have a chapel to either side. These were demolished in 1971. © Peter Morgan (2009). Sacred Heart & St. Cuthbert (R.C.). © Peter Morgan (2009). St. Mark (U.R.C. formerly Congregational). © Peter Morgan (2009). Trinity Methodist Church. © Peter Morgan (2009).

Bamburgh, St. Aidan, whose graveyard contains Grace Darling's grave. Both © Bill Henderson. Two interior views - 1, 2. Both © Peter Morgan (2009). Two further views - 1, 2, and an interior view, all © David Gallimore (2009).The remains of the Chapel of St. Peter, within Bamburgh Castle. The apse. Both © Steve Bulman.
Barrasford, Methodist Church (1877-8). NY 915 734. © Bill Henderson (2011). Link.
Beadnell, St. Ebba. © Peter Morgan. Two further views - 1, 2, both © David Gallimore (2009).
Belford, St. Mary. © Bill Henderson.
Bellingham, St. Cuthbert; another view, and an interior view, all © Alan Blacklock (2010). Methodist Church. NY 839 833. © Bill Henderson.
Berwick-upon-Tweed.
Birdhope Craig, Scotch Church (closed since about 2006). Another view. NY 828 982. Although the plaque says 1826, Tony has a family baptism here from 1824, so this probably isn't the first building on the site. Both Anthony Preston.
Birtley, St. Giles. NY 978 779. © Bill Henderson (2011). Grade II* listed - link. Link2.
Blanchland, the Abbey of God and St. Mary the Virgin, or just St. Mary the Virgin. © Bill Henderson. Link. Another view, and an interior view, both © Peter Morgan (2009).
Blyth.
Bolam, St. Andrew. NZ 092 826. © Bill Henderson (2011). Link.
Bolton, a chapel whose mother church is Edlingham, St. John the Baptist. © Susan Sinclair.
Bothal, St. Andrew. © Sally Funk.
Boulmer, St. Andrew the Fisherman. Another view. Both © Peter Morgan (2009).
Branxton, St. Paul - the burial site of the fallen from the Battle of Flodden Field, 1513. © Bill Henderson.
Brinkburn, Brinkburn Priory. Another view. NZ 118 983. Both © Alan Hopkins. Link1. Link2.
Byrness, St. Francis. © Bill Henderson. Link.
Bywell, St. Peter. © Bill Henderson. Another view. © Peter Morgan. Link. Close by is the redundant church of St. Andrew, which is cared for by the Churches Conservation Trust. © Bill Henderson. Another view. © Peter Morgan. Link.

Cambo, Holy Trinity (1842). NZ 026 857. © Bill Henderson (2011). Grade II listed - link. Link2.
Capheaton, United Methodist Free Church. © Peter Morgan (2009).
Carham, St. Cuthbert. From an old postcard in Reg Dosell's Collection.
Chatton, Holy Cross Church (U.R.C.). 75 NU 056 282. © Steve Bulman. Link.
Chillingham, St. Peter. You shouldn't need a reason to visit the beautiful county of Northumberland, but here's one - the Grey Tomb. 75 NU 063 259. Both © Steve Bulman. Link.
Chollerford, , St. Giles. Interior view. Both © Peter Morgan (2009).
Chollerton, St. Giles. NY 931 719. © Bill Henderson (2011). Link.
Corbridge.
Cornhill-on-Tweed, St. Helen. © Bill Henderson.
Corsenside, St. Cuthbert. © Bill Henderson. Link.
Cowpen, St. Cuthbert (R.C.). © Bill Henderson.
Cramlington, St. Nicholas. © Bill Henderson.

Dilston, St. Mary's Chapel at Dilston Hall. © Bill Henderson. Link.
Doddington, St. Mary & St. Michael. © Bill Henderson.

Earsdon, St. Alban. © Bill Henderson.  Another view. © Alan Craxford. Link1. Link2. Link3.
Eglingham, St. Maurice. 81 NU 106 195. © Steve Bulman.
Elsdon, St. Cuthbert. © Bill McKenzie. Another view. © Bill Henderson.
Embleton, Holy Trinity. Interior view, both © Peter Morgan (2009). Two further views - 1, 2, and another interior view, all © David Gallimore (2009).

Farne Islands (Inner Farne), St. Cuthbert's Chapel. © Peter Morgan (2009). Link.
Felton, St. Michael and All Angels. © Bill Henderson. Link. U.R.C. 81 NU 179 003. © Steve Bulman. Another view. © Bill Henderson.
Ford, St. Michael & All Angels, in the grounds of the castle. Another view. Both © Bill McKenzie.
Fourstones, St. Aidan (or Aiden). © Bill McKenzie (2010).

Glanton, St. Andrew, Anglican and U.R.C. On a visit in 2008, I could only find this one church, despite the OS map showing two. Also, Pevsner (revised edition, 2001) lists only the U.R.C. church, originally Presbyterian, but doesn't give it a dedication. GENUKI lists a St. Peter, but this Glanton newsletter from 2005 mentions the up-coming closure of this church. Presumably St. Peter has been demolished, and the now combined CoE and U.R.C. was re-named St. Andrew after 2005. Unless you know better.....   © Steve Bulman.
Great Swinburne, St. Mary (R.C.). NY 937 756. © Bill Henderson (2011).
Greenhead, dedicated to St. Cuthbert. © Steve Bulman. 86 NY 660 653.
Greystead, St. Luke. © Alan Blacklock (2010). Link.
Gunnerton, St. Christopher. NY 904 749. © Bill Henderson (2011). Link. Grade II listed - link.

Haltwhistle, dedicated as the Church of the Holy Cross. © Steve Bulman. 86 NY 708 641. Another view, © Bill Henderson. Two further views - 1, 2, both © Bill McKenzie (2010). The Two Churches, so called because it houses both the URC church and serves as St. Wilfred's RC Church. © Bill Henderson. Methodist Church. © Alan Blacklock.
Hartburn, St. Andrew. NZ 090 860. © Bill Henderson (2011). Grade I listed - link.
Haydon - see Haydon Bridge, below.
Haydon Bridge.
Healey, St. John. NZ 014 583. © Bill Henderson (2011).
Heavenfield, St. Oswald. © Bill Henderson. Link.
Hebron, St. Cuthbert. Another view. Both © Lyn Chapple.
Heddon-on-the-Wall, St. Andrew. Link. Methodist Church (formerly Wesleyan). Both © Peter Morgan.
Henshaw, dedicated as All Hallows. 86 NY 764 644. Methodist Church. 86 NY 764 646. Both © Steve Bulman.
Hepple, Christ Church. © Bill McKenzie. Link.
Hexham.
Horsley (Ovingham parish), dedication unknown. © Bill Henderson.
Horsley (in Elsdon parish), Holy Trinity.   Link. © Bill Henderson.
Humshaugh, St. Peter. Another view, and an interior view. NY 920 714. All © John Hall.

Kielder, U.R.C., also used by the Methodist and Anglican congregations. 80 NY 623 941. © Dave Westrap. Another view. © Alan Blacklock (2010).
Kirkharle, St. Wilfrid. Interior view. NZ 011 826. Both © Bill Henderson (2011). Link. Grade I listed - link.
Kirkheaton, St. Bartholomew. NZ 017 772. © Bill Henderson (2011). Link. Grade II listed - link.
Kirknewton, St. Gregory the Great. © Sally Funk.
Kirkwhelpington, St. Bartholomew. NY 996 844. © Bill Henderson (2011). Link. Grade II* listed - link.
Knarsdale, St. Jude. © Martin Briscoe. Another view. © Glenn Parker.

Lambley, St. Mary and St. Patrick. Interior view. Both © Alan Blacklock.
Lesbury, St. Mary. 81 NU 236 117. © Steve Bulman. Another view. © Peter Morgan. Link.
Lindisfarne.
Longframlington, St. Mary the Virgin. © Peter Morgan (2009). Link. U.R.C. © Alan Blacklock.
Longhirst, St. John. © Sally Funk.
Longhoughton, St. Peter and St. Paul. © Peter Morgan (2009). Link.
Lowgate, St. Mary. © Alan Blacklock.
Lowick, St. John the Baptist. From an old postcard in Reg Dosell's Collection.

Matfen, Holy Trinity. NZ 030 717. © Bill Henderson (2011). Link. Grade II listed - link.
Mitford, St. Mary Magdalene. © Bill Henderson. Link.
Morpeth, St. James the Great. Link. Grade II* listed - link. St. Mary the Virgin. Link. Grade I listed - link. U.R.C. All © Bill Henderson. The Chantry, which hasn't been used as a chapel since the Reformation. © Chris Emms (2011). Link. Grade I listed - link.

Netherwitton, St. Giles. Another view, and an interior view. NZ 101 904. All © Bill Henderson (2011). Link. Grade II* listed - link.
Newbiggin-by-the-Sea, St. Bartholomew. © Bill Henderson. Another view. © Bill McKenzie (2010). St. Mark (U.R.C.). © Bill Henderson. St. Mary (R.C.). © Bill Henderson. Link.
Newton-by-the-Sea, St. Mary. © Martin Briscoe. Another view, and an interior view, both © Peter Morgan (2009).
Ninebanks. © Steve Bulman. 86 NY 783 525.
North Sunderland, St. Paul (U.R.C.). Interior view. Both © Peter Morgan (2009). Link.

Otterburn, St. John the Evangelist. © Bill McKenzie.
Ovingham, St. Mary. © Peter Morgan. Link.

Ponteland, St. Mary the Virgin. Methodist Church. Both © Bill Henderson.

Rennington, All Saints (1831, additions 1865). © Peter Morgan (2009).
Rothbury.
Ryal, All Saints. NZ 015 742. © Bill Henderson (2011). Grade II listed - link.

Scot's Gap, Methodist Church. NZ 039 864. © Bill Henderson (2011).
Seahouses, Methodist Church. © David Gallimore (2009).
Seaton Delaval, Parish Church of Our Lady. From an old postcard, Steve Bulman's Collection. A modern view. © Bill Henderson. Link. Holy Trinity. NZ2975. © Bill Henderson.
Seaton Sluice, St. Paul. © Bill Henderson.
Seghill, Methodist Church. © Bill Henderson.
Shilbottle, St. James. Another view. Both © Peter Morgan (2009). Link.
Simonburn, St. Mungo. Another view, and an interior view. NY 871 736. All © John Hall. Link.
Slaley, St. Mary the Virgin. NY 973 577. Methodist Church. NY 977 577. Both © Bill Henderson (2011).
Snods Edge, St. John. © Alan Blacklock. Link.
Stagshaw, St. Aidan. NY 981 669. © Bill Henderson (2011).
Stamfordham, St. Mary. The tower. 88 NZ 076 720. Both © Steve Bulman. Link.
Stannington, St. Mary the Virgin. © Bill Henderson.
Stocksfield, Baptist Church. © Alan Blacklock.

Thockrington, St. Aidan. NY 957 789. © Bill Henderson (2011). Link. Grade II* listed - link.
Thropton, U.R.C. © Bill McKenzie.

Walbottle, Methodist Church. © Peter Morgan.
Wall, St. George. NY 916 689. © Bill Henderson (2011). Grade II listed - link.
Warden, St. Michael and All Angels. The rather attractive lych-gate. John advises that the first church on this site was built in 704 A.D. by Bishop Wilfrid, but the present structure is largely of a re-build of 1764, though there is surviving Saxon work, and some re-used Roman masonry. NY 914 665. Both © John Hall.
Wark (on the North Tyne), St. Michael. NY 857 775. © Bill Henderson. Another view. © Alan Blacklock (2010). Link. Methodist and U.R.C. NY 860 766. Both © Bill Henderson. The nearby Chipchase Castle has a Chapel in the grounds. NZ 883 757. © Bill McKenzie (2010). Another view. © Bill Henderson (2011). Grade I listed - link.
Warkworth, St. Lawrence. © Bill Henderson. Another view. © Steve Bulman. And another. © Alan Craxford. NU 248 063. Interior view, and a tomb, both © Peter Morgan (2009). Link. Remains of the chapel, Warkworth Castle. © Peter Morgan (2009). U.R.C. © Alan Hopkins. Cemetery Chapel (C). Another view. NU 250 063. Both © Steve Bulman (2010). Link.
Whalton, St. Mary Magdalene. © Bill Henderson.
Whitfield, dedicated to Holy Trinity. NY 779 569. © Steve Bulman. Another view, and an interior view, both © Alan Blacklock (2010). St. John. NY 778 584. © Alan Blacklock.
Whitley Chapel, St. Helen. NY 928 577. © Bill Henderson (2011). Grade II Listed - link.
Whittingham, St. Bartholomew. Another view. Interior view. A closer view of the window. All © Steve Bulman. Link.
Widdrington, Holy Trinity. © Alan Craxford. Another view. © Bill Henderson. Link. U.R.C., formerly Widdrington Presbyterian Church. Built in 1893, it replaced an earlier building. NZ 253 955. © Alan Craxford. Another view. Interior view. Both © Lesley Taylor.
Woodhorn, St. Mary the Virgin, now in use as a museum. © Bill Henderson. Link.
Wooler, St. Mary. NT 993 281. © Bill Henderson. An old postcard view, from Reg Dosell's Collection. Another view. © Stuart Mackrell. St. Ninian (R.C.). NT 989 283. © Bill Henderson. U.R.C. NT 993 279. © Steve Bulman.
Wylam, St. Oswin. © Peter Morgan. Link.