Florence Selina Harriet Young (10 October 1856 - 28 May 1940) was a New Zealand-born missionary who established the Queensland Kanaka Mission in order to convert blackbirded labourers in Queensland, Australia. In addition, she conducted missionary work in China and the Solomon Islands.
Young was born in Motueka, South Island, the fifth child of an English farmer. Her parents were both Plymouth Brethren. She was educated at home in addition to two years in a boarding school in England.
She moved to Sydney, Australia in 1878, and in 1882 to Fairymead, a sugar plantation near Bundaberg, Queensland owned by her brothers Arthur, Horace, and Ernest Young. She started holding prayer meetings for the families of the planters, which became the Young People's Scriptural Union. Eventually the group attracted 4000 members. Increasingly, she focused on the kanakas (Solomon Islanders), whose "heathen" customs she detested. She began conducting classes in pidgin English, and used pictures and a chrysalis to illustrate the resurrection.
In 1886 she founded the Queensland Kanaka Mission (QKM) at Fairymead as an evangelical, non-denominational church. It spread to other plantations and met with considerable approval from plantation owners and officials. In 1889, Government Inspector Caulfield noted that the behaviour of some South Sea Islanders had been improved by religious instruction. Stressing "salvation before education or civilization," it aimed to prepare the imported labourers for membership in their local established churches when they returned home. At its height, in 1904-1905, the mission employed 19 paid missionaries, and 118 unpaid "native teachers," and claimed 2,150 conversions.