The 1899Toronto Argonauts season was the club's 14th season of organized league competition since its inception in 1873. The team finished in third place in the senior series of the Ontario Rugby Football Union with two wins and four losses, and failed to qualify for the Dominion playoffs.
^Results compiled from the Toronto Evening Star on the following dates: Oct. 9, 1899; Oct. 16, 1899; Oct. 20, 1899; Oct. 30, 1899; Nov. 13, 1899; Nov. 20, 1899.