| Event | Time | Date | Name | Meet | History |
|---|---|---|---|---|---|
| 50 Free | 19.52 | Feb. 23, 2012 | Ryan Phelan | Big Ten Conference Mens Championships | |
| 100 Free | 42.71 | Feb. 24, 2018 | Jack Smith | Big Ten Conference Championships (M) | |
| 200 Free | 1:34.85 | Feb. 23, 2011 | Paul Gordon | Big Ten Conference Mens Championships | |
| 500 Free | 4:19.01 | March 3, 2021 | Mateusz Arndt | B1G Men's Conference Championships | |
| 1000 Free | 9:09.81 | Feb. 28, 2015 | Christopher Dawson | Big Ten Conference Championships (M) | |
| 1650 Free | 15:03.20 | Feb. 25, 2012 | David Belzer | Big Ten Conference Mens Championships | |
| 50 Back | 21.34 | March 29, 2013 | grant betulius | NCAA Division I Mens Championships | |
| 100 Back | 45.60 | Dec. 6, 2014 | grant betulius | Hawkeye Invitational | |
| 200 Back | 1:41.64 | Feb. 29, 2020 | Anze ANŽE | Big Ten Conference Championships (M) | |
| 50 Breast | 24.29 | March 5, 2021 | Will Myhre | B1G Men's Conference Championships | |
| 100 Breast | 51.70 | March 5, 2021 | Will Myhre | B1G Men's Conference Championships | |
| 200 Breast | 1:53.53 | Feb. 29, 2020 | Daniel Swanepoel | Big Ten Conference Championships (M) | |
| 50 Fly | 21.01 | Dec. 2, 2017 | Michal Brzus | Minnesota Invitational | |
| 100 Fly | 46.07 | Feb. 23, 2018 | Jerzy Twarowski | Big Ten Conference Championships (M) | |
| 200 Fly | 1:44.00 | Dec. 7, 2014 | Jerzy Twarowski | Hawkeye Invitational | |
| 100 IM | 50.12 | Feb. 1, 2019 | Anze ANŽE | Iowa vs. Northern Iowa, Western Illinois | |
| 200 IM | 1:44.86 | March 3, 2021 | Anze ANŽE | B1G Men's Conference Championships | |
| 400 IM | 3:45.76 | Feb. 28, 2020 | Anze ANŽE | Big Ten Conference Championships (M) | |
| 200 Free Relay | 1:17.46 | March 22, 2018 | Smith, Scott, Kamin, Myhre | NCAA Division I Mens Championships | |
| 400 Free Relay | 2:51.06 | March 2, 2019 | TARASENKO, Smith, Scott, Myhre | Big Ten Conference Championships (M) | |
| 800 Free Relay | 6:20.84 | Feb. 26, 2020 | TARASENKO, Arndt, Tenney, Fierke | Big Ten Conference Championships (M) | |
| 200 Medley Relay | 1:25.06 | March 2, 2021 | ANZE, Myhre, KUZNETSOV, Miller | B1G Men's Conference Championships | |
| 400 Medley Relay | 3:07.52 | March 3, 2021 | ANZE, Myhre, KUZNETSOV, TARASENKO | B1G Men's Conference Championships |
