See main article: 2005 Pacific Life Open.
Arnaud Clément and Sébastien Grosjean were the defending champions, but did not partner together this year. Clément partnered Jaroslav Levinský, losing in the first round. Grosjean partnered Gaël Monfils, losing in the second round.
Mark Knowles and Daniel Nestor won the title, defeating Wayne Arthurs and Paul Hanley 7–6(8–6), 7–6(7–2) in the final.