| Doubles | |
|---|---|
| 2006 Countrywide Classic | |
| Champions |  Bob Bryan Mike Bryan |
| Runners-up | Eric Butorac  Jamie Murray |
| Final score | 6–2, 6–4 |
| Draw | 16 |
| Seeds | 4 |
Rick Leach and Brian MacPhie were the defending champions, but did not participate this year.
Bob Bryan and Mike Bryan won in the final 6–2, 6–4, against Eric Butorac and Jamie Murray.
Bob Bryan / Mike Bryan (champions) Travis Parrott / Jim Thomas (first round)
Wayne Arthurs / Jordan Kerr (quarterfinals)
Jeff Coetzee / 
Dominik Hrbatý (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | B Bryan M Bryan | 6 | 6 | ||||||||||||||||||||||||
 A Clément N Mahut | 1 | 4 | 1 | B Bryan M Bryan | 6 | 6 | |||||||||||||||||||||
| M Fish J Gimelstob | 6 | 6 | M Fish J Gimelstob | 3 | 4 | ||||||||||||||||||||||
 G Müller  P Srichaphan | 3 | 3 | 1 | B Bryan M Bryan | 77 | 6 | |||||||||||||||||||||
| 3 | W Arthurs J Kerr | 6 | 3 | [12] |  P Capdeville F González | 63 | 2 | ||||||||||||||||||||
 L Burgsmüller  K Carlsen | 3 | 6 | [10] | 3 | W Arthurs J Kerr | 6 | 3 | [6] | |||||||||||||||||||
| P Capdeville F González | 6 | 2 | [10] | P Capdeville F González | 3 | 6 | [10] | ||||||||||||||||||||
| V Spadea D Udomchoke | 4 | 6 | [5] | 1 | B Bryan M Bryan | 6 | 6 | ||||||||||||||||||||
S Huss  X Malisse | 3 | 2 | E Butorac J Murray | 2 | 4 | ||||||||||||||||||||||
 I Kunitsyn D Tursunov | 6 | 6 | I Kunitsyn D Tursunov | 63 | 3 | ||||||||||||||||||||||
| A Fisher T Phillips | 7 | 0 | [9] | 4 | J Coetzee D Hrbatý | 77 | 6 | ||||||||||||||||||||
| 4 | J Coetzee D Hrbatý | 5 | 6 | [11] | 4 | J Coetzee D Hrbatý | 6 | 3 | [9] | ||||||||||||||||||
| WC | S Jenkins P Simmonds | 6 | 3 | [10] | E Butorac J Murray | 4 | 6 | [11] | |||||||||||||||||||
| WC | S Querrey K Van't Hof | 3 | 6 | [6] | WC | S Jenkins P Simmonds | 4 | 5 | |||||||||||||||||||
| E Butorac J Murray | 6 | 6 | E Butorac J Murray | 6 | 7 | ||||||||||||||||||||||
| 2 | T Parrott J Thomas | 2 | 3 | ||||||||||||||||||||||||
Bob Bryan and Mike Bryan were the defending champions and successfully defended their title, defeating Jonathan Erlich and Andy Ram 7–6(8–6), 6–2 in the final.
Hugo Armando and Xavier Malisse were the defending champions, but lost in the first round to Bob Bryan and Mike Bryan.
Bob Bryan and Mike Bryan were the defending champions, and won in the final 6–2, 6–2, against Mahesh Bhupathi and Mark Knowles.
Richard Gasquet and Jo-Wilfried Tsonga were the defending champions, but both chose not to participate that year.
Max Mirnyi and Jamie Murray were the defending champions, but did not compete together that year.
Mirnyi partnered with Ashley Fisher, but lost in the first round to Bob Bryan and Mike Bryan.
Murray partnered with Dušan Vemić, but lost in the quarterfinals to Rajeev Ram and Bobby Reynolds.
Bob Bryan and Mike Bryan won in the final, 6–4, 6–4, over Marcelo Melo and André Sá.
Bob Bryan and Mike Bryan were the defending champions, but lost in the final to Daniel Nestor and Nenad Zimonjić, 3–6, 7–6(7–2), [15–13].
Stephen Huss and Ross Hutchins were the defending champions, but they chose to participate at the Rakuten Japan Open Tennis Championships instead.
Paul Kilderry and Sandon Stolle were the defending champions but lost in the quarterfinals to Tommy Haas and Max Mirnyi.
Bob Bryan and Mike Bryan were the defending champions but lost in the final 6–3, 3–6, [10–4] against Brian MacPhie and Nenad Zimonjić.
Donald Johnson and Gustavo Kuerten were the defending champions but only Johnson competed that year with Jared Palmer.
Mike Bryan and Mark Knowles were the defending champions but only Bryan competed that year with his brother Bob.
Lukáš Dlouhý and Paul Hanley were the defending champions but decided not to participate. Bob and Mike Bryan won in the final against Matthew Ebden and Jarkko Nieminen, 6–1, 6–4
Jonas Björkman and Todd Woodbridge were the defending champions, but did not participate together this year. Björkman partnered Max Mirnyi, losing in the first round. Woodbridge retired from professional tennis earlier in the year.
Alexander Peya and Bruno Soares were the defending champions and successfully defended their title, defeating Bob Bryan and Mike Bryan in the final, 7–6(7–3), 6–7(1–7), [13–11].
Bob and Mike Bryan were the defending champions, but lost in the final to Eric Butorac and Raven Klaasen, 4–6, 4–6.
Bob Bryan and Mike Bryan were the defending champions, but lost to Daniel Nestor and Nenad Zimonjić in the final, 4–6, 2–6.
Bob and Mike Bryan were the defending champions and successfully defended the title, defeating Vasek Pospisil and Jack Sock in the final, 6–3, 6–2.
Bob Bryan and Mike Bryan were the defending champions and successfully defended their title, defeating Vasek Pospisil and Jack Sock in the final, 6–3, 1–6, [10–8].
Mark Knowles and Daniel Nestor were the defending champions, but lost in semifinals to Bob Bryan and Mike Bryan.
Andrés Molteni and Horacio Zeballos were the defending champions, but Zeballos chose to compete in Hamburg instead. Molteni played alongside Adil Shamasdin, but lost in the quarterfinals to Wesley Koolhof and Artem Sitak.