The 2001 Canada Masters doubles was the men's doubles event of the one hundred and twelfth edition of the Canada Masters; a WTA Tier I tournament and the most prestigious men's tennis tournament held in Canada. Sébastien Lareau and Daniel Nestor were the defending champions but they competed with different partners that year, Lareau with Justin Gimelstob and Nestor with Sandon Stolle. Gimelstob and Lareau lost in the first round to Mark Knowles and Brian MacPhie, as did Nestor and Stolle to Jan-Michael Gambill and Simon Larose. Jiří Novák and David Rikl won in the final 6–4, 3–6, 6–3 against Donald Johnson and Jared Palmer.
Sébastien Lareau and Alex O'Brien defeated Mahesh Bhupathi and Leander Paes in the final, 6–3, 6–2, 6–2 to win the doubles tennis title at the 1999 ATP Tour World Championships.
Jacco Eltingh and Paul Haarhuis were the defending champions, but Eltingh did not compete this year. Haarhuis competed with American Jared Palmer as the seventh seed, but they were eliminated in the second round by Javier Sánchez and Jan Siemerink.
Mark Knowles and Daniel Nestor were the defending champions, but lost in the final to Michaël Llodra and Fabrice Santoro.
Jonas Björkman and Todd Woodbridge were the defending champions, but lost in the second round to Tomáš Cibulec and Daniel Vacek.
Todd Woodbridge and Mark Woodforde defeated Paul Haarhuis and Sandon Stolle in the final, 6–3, 6–4, 6–1, to win the gentlemen's doubles title at the 2000 Wimbledon Championships. It was their sixth Wimbledon title and eleventh and last major title overall, though Woodbridge would go on to win the title a further three times partnering Jonas Björkman.
Three-time defending champions Todd Woodbridge and Mark Woodforde defeated Byron Black and Grant Connell in the final, 4–6, 6–1, 6–3, 6–2 to win the gentlemen's doubles title at the 1996 Wimbledon Championships. It was their fourth Wimbledon title and sixth major title overall.
Leander Paes and Jan Siemerink were the defending champions but they competed with different partners that year, Paes with Mahesh Bhupathi and Siemerink with Jack Waite.
Todd Woodbridge and Mark Woodforde were the defending champions but only Woodbridge competed that year with Jonas Björkman.
Jiří Novák and David Rikl were the defending champions but lost in the semifinals to Ellis Ferreira and Jeff Tarango.
Nicklas Kulti and Max Mirnyi were the defending champions but only Mirnyi competed that year with Sandon Stolle.
Mark Knowles and Daniel Nestor were the defending champions but lost in the quarterfinals to Leander Paes and David Rikl.
Jacco Eltingh and Paul Haarhuis were the defending champions but only Haarhuis competed that year with Sjeng Schalken.
Wayne Ferreira and Yevgeny Kafelnikov were the defending champions but lost in the first round to David Rikl and Daniel Vacek.
Todd Woodbridge and Mark Woodforde were the defending champions, but Woodforde had retired from the tour. Woodbridge partnered with Jonas Björkman but lost in the third round to Bob and Mike Bryan.
Mahesh Bhupathi and Leander Paes were the defending champions, but did not participate together. Paes played with Tomáš Cibulec but they lost in the semifinals to Mark Knowles and Daniel Nestor. Bhupathi partnered with Max Mirnyi but they lost in semifinals to Paul Haarhuis and Yevgeny Kafelnikov.
Todd Woodbridge and Mark Woodforde defeated Paul Haarhuis and Sandon Stolle in the final, 7–6(9–7), 6–4 to win the men's doubles tennis title at the 2000 French Open. With the win, the Woodies completed the career Grand Slam and the career Super Slam.
Donald Johnson and Kimberly Po-Messerli were the defending champions but lost in the quarterfinals to Leoš Friedl and Daniela Hantuchová.
Since the 1999 final was cancelled due to rain, no defending champions were declared.
Jiří Novák and David Rikl were the defending champions, but lost in first round to Lan Bale and Grant Stafford.
Leander Paes 
Jan Siemerink 
Ellis Ferreira 
David Rikl 
