(13 September 1873 - 29 May 1930) was an Australian artist, known principally for portrait paintings and as a war artist during the First World War.
Lambert was born in St Petersburg, Russia, the posthumous son of George Washington Lambert (1833 - 25 July 1873, in London) of Baltimore, Maryland. The younger Lambert's mother was Annie Matilda, nee Firth, an Englishwoman. Mother and son soon moved to Werttemberg, Germany, to be with Lambert's maternal grandfather. Lambert was educated at Kingston College, Yeovil, Somerset. The family, consisting of Lambert, his mother and three sisters, decided to emigrate to Australia. They arrived in Sydney aboard the Bengal on 20 January 1887.
