Alexander Francis Moncur (1888–1976) was a New Zealand politician of the Labour Party.
He was the unsuccessful Labour candidate for the Bay of Plenty seat in 1928 and for the Rotorua seat in 1931.
He represented the Rotorua electorate from 1935 to 1943, when he was defeated by Geoffrey Sim. He was in the RNZAF 1941-1942.
He was born in Melbourne and arrived in New Zealand in 1906. He was a miner on the West Coast and Waihi, then in 1910 joined the New Zealand Railways as a guard. He was in the Amalgamated Society of Railway Servants, and was Auckland branch president 1912-21. He worked at Rotorua, and owned a taxi business at Waihi where he became a Borough Councillor 1925-35. Later he was the Mayor of Rotorua from 1947 to 1953.