Swimming at the 1998 World Aquatics Championships – Men's 400 metre individual medley
# Swimming at the 1998 World Aquatics Championships – Men's 400 metre individual medley

The finals and the qualifying heats of the men's 400 metre individual medley event at the 1998 World Aquatics Championships were held on Tuesday 13 January 1998 in Perth, Western Australia.

## A Final

| Rank | Name | Time |
| - | - | - |
| | Tom Dolan (USA) | 4:14.95 |
| | Marcel Wouda (NED) | 4:15.53 |
| | Curtis Myden (CAN) | 4:16.45 |
| 4 | Matthew Dunn (AUS) | 4:16.76 |
| 5 | István Batházi (HUN) | 4:20.28 |
| 6 | Robert Seibt (GER) | 4:20.56 |
| 7 | Trent Steed (AUS) | 4:21.86 |
| 8 | Tatsuya Kinugasa (JPN) | 4:21.91 |

## B Final

| Rank | Name | Time |
| - | - | - |
| 9 | Frederik Hviid (ESP) | 4:21.66 |
| 10 | Steven Brown (USA) | 4:22.14 |
| 11 | Xavier Marchand (FRA) | 4:23.24 |
| 12 | Miguel Santolaya (ESP) | 4:26.79 |
| 13 | Krešimir Čač (CRO) | 4:27.18 |
| 14 | Josef Horký (CZE) | 4:29.75 |
| 15 | Mark Kwok (HKG) | 4:30.66 |
| — | Xiong Guoming (CHN) | DSQ |

## Qualifying heats

| Rank | Name | Time |
| - | - | - |
| 1 | Marcel Wouda (NED) | 4:17.91 |
| 2 | Curtis Myden (CAN) | 4:18.70 |
| 3 | Tom Dolan (USA) | 4:19.67 |
| 4 | Trent Steed (AUS) | 4:20.13 |
| 5 | Matthew Dunn (AUS) | 4:21.22 |
| 6 | Robert Seibt (GER) | 4:21.50 |
| 7 | István Batházi (HUN) | 4:21.95 |
| 8 | Tatsuya Kinugasa (JPN) | 4:22.07 |
| 9 | Xavier Marchand (FRA) | 4:22.77 |
| 10 | Frederik Hviid (ESP) | 4:22.90 |
| 11 | Steven Brown (USA) | 4:23.93 |
| 12 | Josef Horký (CZE) | 4:28.70 |
| 13 | Xiong Guoming (CHN) | 4:28.72 |
| 14 | Miguel Santolaya (ESP) | 4:29.42 |
| 15 | Mark Kwok (HKG) | 4:29.71 |
| 16 | Krešimir Čač (CRO) | 4:30.83 |
| 17 | Kim Bang-Hyun (KOR) | 4:30.91 |
| 18 | Oliver Young (NZL) | 4:30.94 |
| 19 | Gunter Rodríguez (CUB) | 4:31.47 |
| 20 | Marko Milenkovič (SLO) | 4:31.89 |
| 21 | Ratapong Sirisanont (THA) | 4:32.76 |
| 22 | Alex Fong Lik-Sun (HKG) | 4:32.91 |
| 23 | Adrian Andermatt (SUI) | 4:33.52 |
| 24 | Jin Hao (CHN) | 4:33.95 |
| 25 | Aleksandar Miladinovski (MKD) | 4:34.72 |
