The 2005 Davis Cup was the 94th edition of the most important tournament between nations in men's tennis. A total of 130 teams participated in the tournament. The final took place 2–4 December at the Sibamac Arena in Bratislava, Slovakia, with Croatia defeating Slovakia for their first title.

World Group

Draw

First round losers compete in play-off ties with Zonal Group I Qualifiers.

Final

World Group play-offs

Date: 23–25 September

Americas Zone

Group I

Group II

Group III

Venue: Club de Tenis La Paz, La Paz, Bolivia (clay) Date: Week of 28 February (scores in italics carried over from Groups)

Group IV

Asia/Oceania Zone

Group I

Group II

Group III

Venue: Victoria Park Tennis Centre, Causeway Bay, Hong Kong (hard) Date: 13–17 July (scores in italics carried over from Groups)

Group IV

Venue: Thein Byu Tennis Club, Yangon, Myanmar (hard) Date: 27 April–01 May

Europe/Africa Zone

Group I

Group II

Group III

Venue 1

Venue: Smash Tennis Academy, Cairo, Egypt (clay) Date: 27 April – 1 May (scores in italics carried over)

Venue 2

Venue: Fitzwilliam Tennis Club, Dublin, Ireland (grass) Date: 13–17 July (scores in italics carried over)

Group IV

Venue: Lugogo Tennis Club, Kampala, Uganda (clay) Date: Week of 28 February