| 2004–05 Ranji One Day Trophy | |
| Fromdate: | 9 January |
| Todate: | 14 April 2005 |
| Administrator: | BCCI |
| Cricket Format: | List A cricket |
| Tournament Format: | Round-robin and Playoff format |
| Host: | Various |
| Champions: | Uttar Pradesh (1st title) and Tamil Nadu |
| Count: | 2 |
| Participants: | 27 |
| Matches: | 69 |
| Most Runs: | Vidyut Sivaramakrishnan (493) (Tamil Nadu) |
| Most Wickets: | Ranadeb Bose (15) (Bengal) |
| Previous Year: | 2003–04 |
| Previous Tournament: | 2003–04 Ranji One Day Trophy |
| Next Year: | 2005–06 |
| Next Tournament: | 2005–06 Ranji One Day Trophy |
The 2004–05 Ranji One Day Trophy was the twelfth edition of India's annual List A cricket tournament, which became the Vijay Hazare Trophy in 2007.[1] It was contested between 27 domestic cricket teams, starting in January and finishing in April 2005. The final was tied between Uttar Pradesh and Tamil Nadu, and they shared the trophy.[2]