| Portrait | Office | Name | Term | Party | Undersecretaries |
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| Prime Minister | Massimo D'Alema | 21 October 1998 – 22 December 1999 | | Democrats of the Left | Franco Bassanini (DS) Marco Minniti (DS)[a] |
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| Deputy Prime Minister[b] | Sergio Mattarella | 21 October 1998 – 22 December 1999 | | Italian People's Party |
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| Minister of Foreign Affairs | Lamberto Dini | 21 October 1998 – 22 December 1999 | | Italian Renewal | Valentino Martelli (UDR) Umberto Ranieri (DS) Rino Serri (DS) Patrizia Toia (PPI) |
| Minister of the Interior | Rosa Russo Iervolino | 21 October 1998 – 22 December 1999 | | Italian People's Party | Franco Barberi (Ind.) Alberto La Volpe (SDI) Diego Masi (UDR) (until 10 March 1999) Alberto Gaetano Maritati (DS) Giannicola Sinisi (PPI) Adriana Vigneri (DS) |
| Minister of Grace and Justice | Oliviero Diliberto | 21 October 1998 – 22 December 1999 | | Party of Italian Communists | Giuseppe Ayala (DS) Franco Corleone (FdV) Marianna Li Calzi (RI) Maretta Scoca (UDR) |
| Minister of Treasury, Budget and Economic Planning | Carlo Azeglio Ciampi | 21 October 1998 – 13 May 1999 | | Independent | Stefano Cusumano (UDR) (until 26 Apr. 1999) Natale D'Amico (RI) Dino Piero Giarda (Ind.) Laura Pennacchi (DS) (until 9 July 1999) Giorgio Macciotta (DS) Roberto Pinza (PPI) Bruno Solaroli (DS) (since 27 Sept. 1999) |
| Giuliano Amato | 13 May 1999 – 22 December 1999 | | Independent |
| Minister of Finance | Vincenzo Visco | 21 October 1998 – 22 December 1999 | | Democrats of the Left | Ferdinando De Franciscis (PPI) Fausto Vigevani (DS) Gian Franco Schietroma (SDI) (since 04 Aug. 1999) |
| Minister of Defence | Carlo Scognamiglio | 21 October 1998 – 22 December 1999 | | Democratic Union for the Republic | Fabrizio Abbate (PPI) Massimo Brutti (DS) Paolo Guerrini (PdCI) Gianni Rivera (RI) |
| Minister of Public Education | Luigi Berlinguer | 21 October 1998 – 22 December 1999 | | Democrats of the Left | Teresio Delfino (UDR) (until 04 Aug. 1999) Nadia Masini (DS) Carla Rocchi (FdV) Sergio Zoppi (PPI) |
| Minister of Public Works | Enrico Luigi Micheli | 21 October 1998 – 22 December 1999 | | Italian People's Party | Antonio Bargone (DS) Mauro Fabris (UDR) Gianni Francesco Mattioli (FdV) |
| Minister of Agricultural and Forestry Policies | Paolo De Castro | 21 October 1998 – 22 December 1999 | | Independent | Roberto Borroni (DS) Nicola Fusillo (PPI) |
| Minister of Transport and Navigation | Tiziano Treu | 21 October 1998 – 22 December 1999 | | Italian Renewal | Giordano Angelini (DS) Luca Danese (UDR) |
| Minister of Communications | Salvatore Cardinale | 21 October 1998 – 22 December 1999 | | Democratic Union for the Republic | Vincenzo Maria Vita (DS) Michele Lauria (PPI) |
| Minister of Industry, Commerce and Craftsmanship | Pier Luigi Bersani | 21 October 1998 – 22 December 1999 | | Democrats of the Left | Umberto Carpi (DS) Gianfranco Morgando (PPI) |
| Minister of Labour and Social Security | Antonio Bassolino | 21 October 1998 – 21 June 1999 | | Democrats of the Left | Claudio Caron (PdCI) Bianca Maria Fiorillo (RI) Raffaele Morese (Ind.) Luigi Viviani (DS) |
| Cesare Salvi | 21 June 1999 – 22 December 1999 | | Democrats of the Left |
| Minister of Foreign Trade | Piero Fassino | 21 October 1998 – 22 December 1999 | | Democrats of the Left | Antonello Cabras (DS) |
| Minister of Health | Rosy Bindi | 21 October 1998 – 22 December 1999 | | Italian People's Party | Monica Bettoni Brandani (DS) Antonino Mangiacavallo (RI) |
| Minister of Cultural Heritage and Activities | Giovanna Melandri | 21 October 1998 – 22 December 1999 | | Democrats of the Left | Giampaolo D'Andrea (PPI) Agazio Loiero (UDR) |
| Minister of the Environment | Edo Ronchi | 21 October 1998 – 22 December 1999 | | Federation of the Greens | Valerio Calzolaio (DS) |
| Minister of University, Scientific Research and Technology | Ortensio Zecchino | 21 October 1998 – 22 December 1999 | | Italian People's Party | Antonino Cuffaro (PdCI) Luciano Guerzoni (DS) |
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| Minister for Institutional Reforms (without portfolio) | Giuliano Amato | 21 October 1998 – 13 May 1999 | | Independent | |
| Antonio Maccanico | 13 May 1999 – 22 December 1999 | | The Democrats |
| Minister for Equal Opportunities (without portfolio) | Laura Balbo | 21 October 1998 – 22 December 1999 | | Federation of the Greens | |
| Minister of Regional Affairs (without portfolio) | Katia Bellillo | 21 October 1998 – 22 December 1999 | | Party of Italian Communists | |
| Minister for Parliamentary Relations (without portfolio) | Gian Guido Folloni | 21 October 1998 – 22 December 1999 | | Democratic Union for the Republic | Elena Montecchi (DS) |
| Minister of Public Function (without portfolio) | Angelo Piazza | 21 October 1998 – 22 December 1999 | | Italian Democratic Socialists | Gianclaudio Bressa (PPI) |
| Minister of Social Solidarity (without portfolio) | Livia Turco | 21 October 1998 – 22 December 1999 | | Democrats of the Left | |
| Minister of Community Policies (without portfolio) | Enrico Letta | 21 October 1998 – 22 December 1999 | | Italian People's Party | |