The men's marathon at the 1991 World Championships in Athletics in Tokyo, Japan was held on September 1, 1991. The race started at 18:00 local time.
| Gold | ||
| Silver | ||
| Bronze |
| Standing records prior to the 1991 World Athletics Championships | ||||||
|---|---|---|---|---|---|---|
| 2:06:50 | April 17, 1988 | Rotterdam, Netherlands | ||||
| 2:10:03 | August 14, 1983 | Helsinki, Finland | ||||
| 2:08:53 | February 3, 1991 | Ōita, Japan | ||||
| Rank | Athlete | Nation | Result | |
|---|---|---|---|---|
| 2:14:57 | ||||
| 2:15:26 | ||||
| 2:15:36 | ||||
| 4 | 2:15:47 | |||
| 5 | 2:15:52 | |||
| 6 | 2:15:58 | |||
| 7 | 2:16:15 | |||
| 8 | 2:17:03 | |||
| 9 | 2:18:37 | |||
| 10 | 2:19:01 | |||
| 11 | 2:19:18 | |||
| 12 | 2:20:02 | |||
| 13 | 2:20:31 | |||
| 14 | 2:21:16 | |||
| 15 | 2:21:37 | |||
| 16 | 2:22:17 | |||
| 17 | 2:22:43 | |||
| 18 | 2:23:13 | |||
| 19 | 2:23:14 | |||
| 20 | 2:23:24 | |||
| 21 | 2:24:26 | |||
| 22 | 2:25:28 | |||
| 23 | 2:26:50 | |||
| 24 | 2:26:56 | |||
| 25 | 2:28:40 | |||
| 26 | 2:29:09 | |||
| 27 | 2:29:14 | |||
| 28 | 2:29:35 | |||
| 29 | 2:32:37 | |||
| 30 | 2:32:57 | |||
| 31 | 2:33:13 | |||
| 32 | 2:34:26 | |||
| 33 | 2:36:54 | |||
| 34 | 2:37:20 | |||
| 35 | 2:48:12 | |||
| 36 | 2:56:36 | |||
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