Lionel Gage Wigmore (14 March 1899 – 8 November 1989) was an English-born Australian journalist and military historian.

[1] He also served in the Australian Citizen Force, the country's part-time militia, as a lieutenant in the Army Service Corps.

In February 1942, with the Japanese having pushed the British and Allied forces in Malaya back to Singapore Island, Wigmore was evacuated to Java.

He served briefly as an assistant Australian government commissioner, working to arrange supplies to be sent to Australia from Netherlands East Indies, before it, like Singapore, was captured by the Japanese.

[3] In 1948, Long selected Wigmore as the author of the volume concerning the Australian Army's effort in British Malaya after his original choice had dropped out.

There were disagreements with Stanley Kirby, the author of the British official history on the war with Japan about the analysis of events in Singapore.

He continued to write and was a co-author with Bruce Harding of They Dared Mightily, an account of the Australian Victoria Cross recipients, published in 1963.

This work was followed by histories of Canberra and the Snowy Mountains Scheme, a hydroelectric facility in southern New South Wales.