Holy Trinity Church, Shenington is situated alongside the village green. It dates from the 12th and 13th Century and is listed Grade II* under the Town and Country Planning Act.
There is a Norman arch, set in the chancel over the organ pipes.It is finely ornamented with zigzag and cable mouldings.
Outside, carved in stone, on the south wall is most interesting figure of a man, dressed in a robe and in the south porch there is a very fine copy of the figure by the late Harold Clifton.
There is excellent stained glass in the chancel, particularly the east window.
The tower, dated 1504, houses five bells dated 1678 and a clock dated circa 1700.
Church. C12 chancel arch moved to north side of chancel in C19. Mostly C13. Many windows are C14 and later repaired or restored. C15 south porch. West tower probably 1504 (bequest). C19 vestry. 1879 restoration by J.L. Pearson. Coursed ironstone rubble and ironstone ashlar. Chancel and porch have steeply pitched stone slate roofs laid to diminishing courses. Nave and south aisle roofs not visible. Stone coped gables. Stone flue on north. Chancel, nave, south aisle, south porch, west tower. 5-window range. Chancel has a 3-light east window with renewed reticulated tracery in Clipsham stone. Hood mould and headstop. South has three 2-light windows with trefoiled lights and quatrefoil. Centre window has repaired stonework. Sill of window on left (west) is lower. Hood moulds and label stops. Nave has four 2-light windows on north with trefoiled heads, the windows wholly renewed in C19 in Clipsham stone. One window is inserted in the former north doorway. C19 vestry. 4 north and south 2-light Perpendicular clerestory windows with hood moulds and label stops. Nave has stone parapets and gable with housing for Sanctus bell. South aisle has a 2-light window with renewed ironstone tracery and mullion and a 3-light window with trefoiled lights and square head with weathered label stops. To left of the latter window is a 'lively rustic carving of a man and an ox under a C14 canopy' (Pevsner) now badly weathered. Perpendicular south porch with pointed arched stone doorway with hood mould and label stop. 2 scratch dials to right of entrance. West tower of 2 stages with crenellated parapet and Clipsham stone pinnacles. 3-light Perpendicular window on west and 2-light louvred window to bell-stage. Diagonal buttresses: Moulded stone plinth. Staircase projection on south. Interior. C12 chancel arch now in north wall of chancel has cable and zigzag decoration. Decorated sedilia and piscina. C13 style chancel arch inserted by J.L. Pearson. 2-bay south arcade has 3 octagonal stone piers on C19 stone base. Capitals have stiff leaf decoration with heads amongst the foliage. C19 roof to nave, chancel and south aisle. Font c.1800. C19 fittings including pitch pine benches, oak choir stalls, pulpit, lectern. C19 tiles. Stained glass by Jones and Willis of Birmingham erected 1909, 1920 and 1921. East window in chancel designed by Edmund Sedding, main lights by Henry Casolani, executed by Powell. Marble wall plaque in chancel to Edward and Rebecca Hughes dated 1722.