Clement George McCullagh (March 16, 1905 – August 5, 1952) was an influential Canadian newspaper owner between 1936 and 1952.

The Globe rejected his request to be a junior reporter; instead employing him as a subscription agent in London at age 16.

[4] He left the Globe to become a floor man at the Toronto Stock Exchange for Milner, Ross and Co. and specialized in oil, mining and gold share sales.

[5] The Ontario Liberal Party, including Premier Mitchell Hepburn, believed The Globe and Mail would be a strong ally.

[4] McCullagh launched a series of radio broadcasts in 1939 to promote his nonpartisan vision for Canadian politics.

McCullagh died on August 5, 1952, at the age of 47, committing suicide[10] following a lengthy illness that included three heart attacks.