Treknow (/trəˈnoʊ/) is a small village in Tintagel civil parish, Cornwall, England, United Kingdom: it is the second largest settlement, and is located between Trevena and Trebarwith.

It is situated 19 miles (31 km) north of Bodmin, 4 miles (6.4 km) north-west of Camelford, and 1 mile (1.6 km) west of Tintagel, grid reference SX056869 Treknow (pictured right, from the old road to Trebarwith Strand) lies within the Cornwall Area of Outstanding Natural Beauty (AONB).

One of the oldest is Lanterdan, recorded in 1464:[2] Bagalow Quarry near Hole Beach was an enterprise of Edgar Jeffray (early 19th century).

Some buildings in the village display a marked Arts and Crafts influence, probably as a result of the work of architect Detmar Blow who is known to have worked on the Old Post Office in Tintagel for four years from 1896.

The former small Chapel of the Holy Family (Church of England, built in 1929[5]) has been redeveloped for private use.