Colonel Charles Frederick Hamilton (1879 -1933) was a Canadian intelligence officer and newspaper journalist. Hamilton was born in Roslin, Ontario in 1879, and later graduated from Queen's University As a journalist, Hamilton first worked for the Toronto World, and from 1899-1902, at the Toronto Globe, where he covered the Boer War and "scooped" coverage of the Battle of Paardeberg. He later worked at the Toronto News. He co-authored a biography of George Monro Grant, Principal Grant, in 1904.