John Ewen Davidson (2 March 1841 in London – 2 September 1923 in Oxford) was a colonist sugar planter, slave owner, murderer,[1] and miller in Queensland.

According to his own diary entries, Davidson was involved in frequent mass shootings of Aboriginal people in this area as he tried to establish his sugar plantation.

In March, Davidson again participated in a raid on the local people by the Native Police and "no end of bags, fish baskets, spears were brought back" as plunder.

Davidson was additionally aided by Inspector John Murray of the Native Police, who would arrive "to clear out the blacks".

In 1884, Davidson travelled to England to try to persuade the Colonial Office to allow importations of Indian labourers, after the kanaka trade had ceased.

Due to the advent of the Federation and introduction of governmentally supported Central Mills, the cane industry declined and the business of the large sugar estates slowed-down significantly.