Toronto Sun is a Canadian daily tabloid newspaper. It is published by Sun Media Corporation, a subsidiary of Quebecor Media. The Sun was first published on November 17, 1971, as an afternoon paper.

The Sun is the sister paper of the Toronto Star. The two papers are owned by different groups but are printed at the same facility.

The Toronto Sun's head office is in downtown Toronto, with its printing plant located in Vaughan, Ontario.

The Toronto Sun is published in English, and French versions are also available in some areas.