| General Chair | |
| Ted Senator | tsenator AT darpa DOT mil |
| Associate General Chair | |
| Hillol Kargupta | hillol AT csee DOT umbc DOT edu |
| Program Chairs | |
| Pedro Domingos | pedrod AT cs DOT washington DOT edu | Christos Faloutsos | christos AT cs DOT cmu DOT edu |
| Industrial/Government Track Chairs | |
| Paul Bradley | paul AT bradley-data DOT com | Michael Pazzani | pazzani AT ics DOT uci DOT edu |
| Workshops Chair | |
| Charu Aggarwal | charu AT us DOT ibm DOT com |
| Tutorials Chair | |
| Ramakrishnan Srikant | srikant AT almaden DOT ibm DOT com |
| Publicity Chair | |
| Osmar R. Zaļane | zaiane AT cs DOT ualberta DOT ca |
| Local Publicity Chair | |
| Lisa Singh | singh AT cs DOT georgetown DOT edu |
| WebMaster | |
| Osmar R. Zaļane | zaiane AT cs DOT ualberta DOT ca |
| Panels Chair | |
| Steve Lawrence | lawrence-kdd AT necmail DOT com |
| Treasurer | |
| Henry Goldberg | henry.goldberg AT nasd DOT com |
| Best Paper Awards Chair | |
| Daryl Pregibon | daryl AT research DOT att DOT com |
| Student Awards Chair | |
| Mark Craven | craven AT biostat DOT wisc DOT edu |
| Proceedings Chair | |
| Lise Getoor | getoor AT cs DOT umd DOT edu |
| Local Arrangements Chair | |
| Tim Oates | oates AT cs DOT umbc DOT edu |
| KDD-Cup Chairs | |
| Johannes Gehrke | kddcup2003 AT cs DOT cornell DOT edu | Paul Ginsparg | kddcup2003 AT cs DOT cornell DOT edu | Jon Kleinberg | kddcup2003 AT cs DOT cornell DOT edu |
| Government Relations Chairs | |
| Eric Bloedorn | bloedorn AT mitre DOT org | Ashok Srivastava | ashok AT email DOT arc DOT nasa DOT gov |
| Sponsorship Chairs | |
| Herb Edelstein | herb AT twocrows DOT com | John F. Elder IV | elder AT datamininglab DOT com |
| Exhibits Chairs | |
| David Vennergrund | david_vennergrund AT sra DOT com | Kirk Borne | borne AT rings DOT gsfc DOT nasa DOT gov |
| Registration Chairs | |
| Anupam Joshi | joshi AT cs DOT umbc DOT edu | Rita Doerr | reet485 AT hotmail DOT com |
| SIGKDD Chair | |
| Won Kim | won.kim AT cyberdb DOT com |