Anchuthengu, formerly known as Anjengo, is a place situated about 12 km from Varkala en route to Kadakkavur. It is another coastal town in Thiruvananthapuram District and is known as an old colonial settlement. The island is very small in area, sandwitched between the sea and backwaters, but it has high relevance in the history of India, with various colonial powers – The Portuguese, Dutch and the English – tried to occupy the place. The major landmark at Anchuthengu is Anjengo Fort, which is situated between the sea and backwaters. Travellers can also see some ancient tombstones and a garden on the fort premises.

Anchuthengu, literally means five coconut trees, and as the name indicates the whole land is cultivated with coconut trees. Some historians are of the view that the name was derived from Anjingal, which was the original Tamil name of the place. The British mispronounced it as Anjengo and the later generations of the local residents started to refer to this place as Anchuthengu.

Anchuthengu Fort is a 16th century building located at Anchuthengu near Kadakkavoor in Thiruvananthapuram District of Kerala. It is about 10 km from Varkala.
Built by the English East India Company, the fort is preserved as a historical monument. The historic significance tagged to Anjengo comes through foreign powers like the Portuguese, the Dutch and finally the English East India Company. In the year 1684, the English East India Company chose Anjengo to establish their first trade settlement in Kerala