| Doubles | |
|---|---|
| 1999 Connex Open Romania | |
| Champions |  Lucas Arnold Ker Martín García |
| Runners-up |  Marc-Kevin Goellner  Francisco Montana |
| Score | 6–3, 2–6, 6–3 |
Andrei Pavel and Gabriel Trifu were the defending champions, but were forced to withdraw before their semifinal match.
Lucas Arnold Ker and Martín García won the title by defeating Marc-Kevin Goellner and Francisco Montana 6–3, 2–6, 6–3 in the final. [1]
Pablo Albano / 
Tomás Carbonell (first round)
Jaime Oncins / Daniel Orsanic (first round)
Lan Bale / Piet Norval (semifinals)
Cristian Brandi / Massimo Bertolini (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | P Albano T Carbonell | 4 | 3 | ||||||||||||||||||||||||
| L Arnold Ker M García | 6 | 6 | L Arnold Ker M García | 6 | 6 | ||||||||||||||||||||||
D Bowen  E Ran | 4 | 3 |  P Pála P Vízner | 1 | 1 | ||||||||||||||||||||||
| P Pála P Vízner | 6 | 6 | L Arnold Ker M García | 6 | 6 | ||||||||||||||||||||||
| 3 | L Bale P Norval | 6 | 6 | 3 | L Bale P Norval | 4 | 2 | ||||||||||||||||||||
 A Kitinov J Waite | 4 | 4 | 3 | L Bale P Norval | 6 | 6 | |||||||||||||||||||||
| M Puerta J Sánchez | 7 | 79 | M Puerta J Sánchez | 4 | 2 | ||||||||||||||||||||||
| WC |  I Moldovan R Sabău | 5 | 67 | L Arnold Ker M García | 6 | 2 | 6 | ||||||||||||||||||||
| D del Río A Martín | 63 | 1 | MK Goellner F Montana | 3 | 6 | 3 | |||||||||||||||||||||
| WC | A Pavel G Trifu | 77 | 6 | WC | A Pavel G Trifu | 6 | 6 | ||||||||||||||||||||
| WC | G Cosac D Pescariu | 3 | 6 | 6 | WC | G Cosac D Pescariu | 4 | 4 | |||||||||||||||||||
| 4 | M Bertolini C Brandi | 6 | 4 | 3 | WC | A Pavel G Trifu | |||||||||||||||||||||
| MK Goellner F Montana | 6 | 66 | 7 | MK Goellner F Montana | w/o | ||||||||||||||||||||||
| Q |  D Vemić N Zimonjić | 3 | 78 | 5 | MK Goellner F Montana | 7 | 6 | ||||||||||||||||||||
| M Hood S Prieto | 64 | 6 | 6 | M Hood S Prieto | 5 | 4 | |||||||||||||||||||||
| 2 | J Oncins D Orsanic | 77 | 1 | 3 | |||||||||||||||||||||||
Defending champion Thomas Muster defeated Richard Krajicek in the final, 6–2, 6–4, 3–6, 6–3 to win the men's singles tennis title at the 1996 Italian Open.
Donald Johnson and Gustavo Kuerten were the defending champions but only Johnson competed that year with Jared Palmer.
Wayne Black and Sandon Stolle were the defending champions, but none competed this year. Black focused on the singles tournament.
Lucas Arnold Ker and Martín García were the defending champions, but competed this year with different partners. Arnold Ker teamed up with Pablo Albano and lost in quarterfinals to Devin Bowen and Mariano Hood, while García teamed up with Tomás Carbonell and lost in semifinals to Alberto Martín and Eyal Ran.
Donald Johnson and Cyril Suk were the defending champions, but competed this year with different partners. Johnson teamed up with Lucas Arnold Ker and lost in the first round to Nicolas Kiefer and Max Mirnyi, while Suk teamed up with Aleksandar Kitinov and also lost in first round to Roger Federer and Marc Rosset.
Jim Courier and Mark Knowles were the defending champions, but lost in semifinals to Byron Black and Jonathan Stark.
Andre Agassi and Petr Korda were the defending champions, but Agassi did not compete this year. Korda teamed up with Stefan Edberg and lost in second round to Cyril Suk and Daniel Vacek.
Mark Knowles and Daniel Nestor were the defending champions, but lost in second round to qualifiers Alberto Berasategui and Alberto Martín.
Paul Kilderry and Pavel Vízner were the defending champions, but Kilderry did not compete this year. Vízner teamed up with Martin Damm and lost in semifinals to tournament winners Jacco Eltingh and Paul Haarhuis.
Wayne Ferreira was the defending champion, but lost in the second round to Richey Reneberg.
Grant Connell and Patrick Galbraith were the defending champions, but lost in the second round to Mark Draper and Scott Draper.
Todd Woodbridge and Mark Woodforde were the defending champions, but lost in the quarterfinals to tournament runners-up Justin Gimelstob and Patrick Rafter.
Martin Damm and Karel Nováček were the defending champions, but lost in the first round to Olivier Delaître and Greg Rusedski.
Jim Grabb and Richey Reneberg were the defending champions, but Grabb did not compete this year. Reneberg teamed up with Chris Woodruff and lost in the first round to Michael Tebbutt and Mikael Tillström.
Jacco Eltingh was the defending champion, but lost in the first round to Richey Reneberg.
Martin Davis and Tim Pawsat were the defending champions, but none competed this year. Davis retired from professional tennis during this season.
Yevgeny Kafelnikov was the defending champion, but did not compete this year.
Martin Damm and Brett Steven were the defending champions, but none competed this year.
Stefan Edberg and Petr Korda were the defending champions, but lost in the first round to Gary Muller and Danie Visser.
Francisco Clavet was the defending champion, but lost in the first round to Alberto Berasategui.
Alberto Martin defeated Karim Alami 6-3, 6-2 [sic] to win the Gelsor Open in Bucharest, Romania.