Kilmartin Parish Church is a congregation of the Church of Scotland. The present church building was designed by architect James Gordon Davis and opened in 1835, though there had been earlier churches on the site.^[2] The churchyard has an important collection of early Christian and medieval carved stones, known as the Kilmartin Stones. Some are displayed within the parish church itself, others have been gathered into lapidaria within the graveyard, others still remain lying within it.

The two most important monuments are the Kilmartin crosses, one 9th–10th century, the other late medieval in date, within the church. In the churchyard are a large collection of late medieval gravestones in the 'West Highland' style, dating between the 14th and early 16th centuries. Many are marked by figures of warriors in contemporary dress with spears and swords, along with figures of fantastic animals, foliage and interlace patterns. None are inscribed, so the identities of the persons commemorated are unknown. They can, however, be taken to be the monuments of the local landowning or minor noble class in late medieval times. Kilmartin Church was evidently an important burial site, and the graveslabs of the 'Loch Awe school' of carving may have been carved in a workshop at or near Kilmartin. The swords shown on many of the stones refer to warrior (or, more broadly, social) status, and have no connection with the Templars or other medieval military orders, as is sometimes suggested.^[3] Women are commemorated on some of the stones, their symbol often being the shears (referring to household activities).

John Duncanson (c.1630–1687) served as the Church of Scotland minister at Kilmartin between 1655-1662 and again between 1670-1684. He was removed in 1662 when episcopacy was re-established, but his appointment was restored in 1670.^[4] His son Major Robert Duncanson was a key figure in the 1692 Glencoe Massacre. Kilmartin Church has been decommissioned and is now in private ownership.

Kilmartin Museum interprets the Neolithic monuments of Kilmartin Glen and the surrounding area for visitors, and has a selection of excavated artifacts of various periods. It is located within the village in a group of converted buildings. The Museum has a book and gift shop and a café which serves locally sourced freshly prepared meals.^[5] It is currently closed for refurbishment until 2023. However there is still a cafe on site serving light snacks and cakes, including vegan options.

Kilmartin Castle, a small 'Z-plan' tower house, dating from about 1580, stands above the village. Kilmartin was a property of the Campbells, many of whom are buried in the churchyard. John Carswell, Rector of Kilmartin and later titular Bishop of the Isles, lived here before moving to his new residence at Carnasserie Castle. The castle comprises an oblong, three-storey main block, with round towers to the north-east and south-west corners, as well as a small stair tower in the west front. Formerly ruined, it has been restored as a private house in recent years. Shot holes and iron yetts over the windows have been retained.

The village also has a hotel and public toilets.

Kilmartin Glen is the location of several important Neolithic, Bronze Age and Iron Age sites, including Temple Wood (a henge monument), several burial cairns, chambered cairns, standing stones and cup and ring marked rocks.

Kilmartin's is one of the finest concentrations of prehistoric sites in Scotland, and almost all are within an easy walk of the roads which criss-cross the valley. One of the burial cairns has been rebuilt, with access through an opening in the top down stairs to the base of the cairn and a stone burial cist. The two stone circles in Temple Wood have also been re-erected by archaeologists.

Carnasserie Castle stands a little north of Kilmartin, and is in the care of Historic Environment Scotland. It was built by Bishop John Carswell of Argyll between 1565 and 1572, acquired on his death by his patron the Earl of Argyll then sold in 1643 to Sir Dugald Campbell, 3rd Baronet of Auchinbreck. It was blown up by government forces when his successor Duncan Campbell participated in the failed 1685 Argyll's Rising and never repaired. Largely complete, though roofless, its architecture is notably refined and includes much Renaissance ornamental detail.

Also within Kilmartin parish is the important Iron Age and early medieval hill-fort of Dunadd, one of the major centres of the kingdom of Dál Riata. It is also in the care of Historic Environment Scotland. Kilmartin has throughout history been considered one of the poorer and more destitute areas of Scotland.

The Moine Mhòr encompasses a large area of raised bog, saltmarsh, brackish grassland, alder carr, fen and woodland to the west of Kilmartin. The variety of habitats at Moine Mhòr provide important habitats for a variety of animal and plant species, and the area was declared a national nature reserve (NNR) in 1987. It is owned and managed by NatureScot. According to NatureScot lowland raised bogs like Moine Mhòr are some of the rarest and most threatened natural wildlife habitats in Europe, due to removal of peat, afforestation and reclamation of farmland.^[6]

• Famous Scottish writer, Beatrice Grant was born and baptised in Kilmartin in 1761^[7]

• Coventry, Martin (2001). The Castles of Scotland (3rd ed.). Goblinshead.
• Lindsay, Maurice (1986). The Castles of Scotland. Constable & Co.

• Map sources for Kilmartin

• Kilmartin Museum