Brendan H. Macken (21 January 1923 – 12 March 2020) was a Canadian Open tennis champion and Davis Cup player.

Originally from Montreal,[2] Macken won the 1950 Canadian Open, in singles, by defeating defending champion Henri Rochon in the final in three straight sets.

Macken once competed in the main draw singles at Wimbledon, losing his only match in four sets to Kurt Nielsen.

In Davis Cup, Macken played in 10 ties for Canada over 9 years, beginning in 1946.

Canada's best result with Macken on board was defeating Mexico in 1952 to reach the America Zone final, where they lost to the U.S. 1-4.