| Event: | Women's 400metre individual medley |
| Competition: | 1998 FINA World Championships |
| Date: | 12 January 1998 |
| Win Value: | 4 minutes 36.66 seconds |
| Gold: | Chen Yan |
| Goldnoc: | CHN |
| Silver: | Yana Klochkova |
| Silvernoc: | UKR |
| Bronze: | Yasuko Tajima |
| Bronzenoc: | JPN |
| Prev: | 1994 |
| Next: | 2001 |
The finals and the qualifying heats of the women's 400 metre individual medley event at the 1998 World Aquatics Championships were held on Monday 12 January 1998 in Perth, Western Australia.
| Rank | Name | Time | |
|---|---|---|---|
| 4:36.66 | |||
| 4:38.60 | |||
| 4:39.45 | |||
| 4 | 4:40.16 | ||
| 5 | 4:42.01 | ||
| 6 | 4:43.45 | ||
| 7 | 4:46.91 | ||
| 8 | 4:48.84 |
| Rank | Name | Time | |
|---|---|---|---|
| 9 | 4:46.91 | ||
| 10 | 4:46.93 | ||
| 11 | 4:47.52 | ||
| 12 | 4:48.86 | ||
| 13 | 4:50.99 | ||
| 14 | 4:52.09 | ||
| 15 | 4:53.43 | ||
| 16 | 4:55.33 |
| Rank | Name | Time | |
|---|---|---|---|
| 1 | 4:40.72 | ||
| 2 | 4:41.45 | ||
| 3 | 4:42.13 | ||
| 4 | 4:44.85 | ||
| 5 | 4:44.95 | ||
| 6 | 4:45.83 | ||
| 7 | 4:45.94 | ||
| 8 | 4:46.00 | ||
| 9 | 4:46.80 | ||
| 10 | 4:48.64 | ||
| 11 | 4:48.64 | ||
| 12 | 4:49.94 | ||
| 13 | 4:50.11 | ||
| 14 | 4:50.46 | ||
| 15 | 4:54.30 | ||
| 16 | 4:55.56 | ||
| 17 | 4:55.92 | ||
| 18 | 4:56.25 | ||
| 19 | 4:57.16 | ||
| 20 | 4:57.59 | ||
| 21 | 4:59.22 | ||
| 22 | 4:59.88 |