The 1973 Hamilton Tiger-Cats season was the 16th season for the team in the Canadian Football League and their 24th overall.

The Tiger-Cats finished in fourth place in the Eastern Conference with a 7–7 record and missed the playoffs for only the second time since the inception of the Tiger-Cats in 1950.

In May 1973 the club was sold to Mr. Michael G. DeGroote, chairman and chief executive officer of Laidlaw Transportation Limited.

[1] Running backs Receivers Offensive linemen Linebackers Defensive backs Special teams 6-Game Injured List Suspended Active, Injured, Six-Game, Practice Roster, Suspended [2] [3]