Chloe Cooley was a young black woman held as a slave in Fort Erie and Queenston, Upper Canada in the late 1700s, as the area was being settled by Loyalists from the United States. Her owner forced her into a boat to sell her in 1793 across the Niagara River in the United States.
This incident was observed by several witnesses, who petitioned the Executive Council of Upper Canada. Although charges were dropped against Cooley's owner, the incident is believed to have led to passage of the Act Against Slavery, 1793, in Upper Canada. It prevented slaves from being imported into the province and provided for gradual abolition of slavery within a generation among those held there.