| 1500m Freestyle | 15:37.64 | FUJIHARA Satoi |  JPN | 25 Jul 2017 | Samsun, Turkiye |
| 1500m Freestyle | 16:08.56 | PARKIN Terence |  RSA | 13 Sep 2009 | Taipei, Taiwan |
| 1500m Freestyle | 16:20.60 | PARKIN Terence | RSA | 14 Jan 2005 | Melbourne, Australia |
| 1500m Freestyle | 16:32.56 | ROUSSEL Francis |  CAN | 20 Jul 1997 | Copenhagen, Denmark |
| 1500m Freestyle | 16:45.41 | ROUSSEL Francis | CAN | 29 Jul 1993 | Sofia, Bulgaria |
| 1500m Freestyle | 16:47.61 | JOHNSON Alastair |  GBR | 15 Jan 1989 | Christchurch, New Zealand |
| 1500m Freestyle | 16:49.09 | WILSON Stuart |  USA | 16 Jul 1985 | Los Angeles, United States |
| 1500m Freestyle | 17:04.42 | FLOAT Jeffrey | USA | 19 Jul 1977 | Bucharest, Romania |
| 1500m Freestyle | 17:40.60 | FLOAT Jeffrey | USA | 19 Jul 1977 | Bucharest, Romania |
| 1500m Freestyle | 18:08.2 | RICE Ronald | USA | 25 Jul 1973 | Malmö, Sweden |
| 1500m Freestyle | 19:23.7 | KOLLAR Laszlo |  HUN | 13 Aug 1969 | Belgrade, Serbia |
| 1500m Freestyle | 19:45.2 | KOLLAR Laszlo | HUN | 29 Jun 1965 | Washington, United States |
| 1500m Freestyle | 19:56.6 | KOLLAR Laszlo | HUN | 28 Jun 1965 | Washington, United States |
| 1500m Freestyle | 20:02.2 | KOLLAR Laszlo | HUN | 08 Aug 1961 | Helsinki, Finland |
| 1500m Freestyle | 20:08.5 | KOLLAR Laszlo | HUN | 08 Aug 1961 | Helsinki, Finland |
| 1500m Freestyle | 21:59.8 | POLAK Stanislaw |  POL | 08 Aug 1961 | Helsinki, Finland |
| 1500m Freestyle | 22:38.0 | SOBOCINSKI Andrzej-Marek | POL | 29 Aug 1957 | Milan, Italy |
| 1500m Freestyle | 23:16.1 | SOBOCINSKI Andrzej-Marek | POL | 26 Aug 1957 | Milan, Italy |
| 1500m Freestyle | 23:27.5 | ZACCHEI Gino |  ITA | 26 Aug 1957 | Milan, Italy |
| 1500m Freestyle | 23:36.2 | ZACCHEI Gino | ITA | 18 Aug 1953 | Brussels, Belgium |
| 1500m Freestyle | 23:48.5 | ZACCHEI Gino | ITA | 14 Aug 1949 | Copenhagen, Denmark |
| 1500m Freestyle | 24:06.5 | WEISS Kurt |  GER | 25 Aug 1939 | Stockholm, Sweden |
| 1500m Freestyle | 25:13.2 | WEISS Kurt | GER | 22 Aug 1931 | Nuremberg, Germany |
| 1500m Freestyle | 28:18.4 | RUMMLAND Erich | GER | 18 Aug 1928 | Amsterdam, Netherlands |
| 1500m Freestyle | 33:36.4 | DE MARCHI Roberto | ITA | 12 Aug 1924 | Paris, France |