1775 – January 22, 1825) was a businessman and political figure in Upper Canada.
When his father's business encountered financial hardship, Thomas and his brothers travelled to Upper Canada to seek work with their cousin Robert Hamilton.
In 1793, Dickson opened his own shop in Fort Erie to supply goods to the military and fur traders.
In 1812, he was elected to the 6th Parliament of Upper Canada representing the 3rd riding in Lincoln.
He served as an associate judge at the so-called Bloody Assize held at Ancaster later that year.