Adam Loftus Armstrong (13 April 1878 – 30 January 1959) was a New Zealand rugby union player.
A wing-forward, Armstrong represented Wairarapa at a provincial level, and was a member of the New Zealand national side, the All Blacks, in 1903.
After retiring as a player, Armstrong went on to referee to provincial level.
[1] Following the death of Donald Watson in 1958, Armstrong was the oldest living All Black.
This biographical article relating to New Zealand rugby union, about a person born in the 1870s, is a stub.