North Arm is a settlement in Lafonia, the southern part of East Falkland, in the Falkland Islands, It is on the south coast, on the shore of the Bay of Harbours, and overlooks Sea Lion Island in the distance.

[1] It is the largest settlement on East Falkland south of Goose Green.

North Arm is 90 miles (140 km) from Stanley, and it takes four and a half hours to drive there.

North Arm was owned by the Falkland Islands Company until 1991, when it was sold to the government.

The settlement is notable for the still unresolved disappearance and subsequent suspected murder of Royal Marine Alan Addis in August of 1980.