Ben Michaelson should not be confused with Ben Mikaelsen.
| Ben Michaelson | |
| Fullname: | Benjamin Michaelson |
| Strokes: | Butterfly |
| Collegeteam: | Southern Connecticut State University |
| Birth Date: | 13 November 1981 |
| Birth Place: | Seymour, Connecticut, U.S. |
Benjamin Michaelson (born November 13, 1981) is a swimmer hailing from Seymour, Connecticut. He attended Seymour High School, later continuing his education and career at Southern Connecticut State University under head coach Timothy Quill and assistant coach CJ Moran. After college, he continued swimming at the SoNoCo swim club out of SCSU and later Club Wolverine. In 2003, he was ranked 11th in the world for the men's 100 long course meter fly, his time of 52.76 tied him for third on the all-time top times for Americans. In 2004, he placed 3rd in the 100 m fly behind Ian Crocker and Michael Phelps at the US Olympic Trials. He officially retired after in the latter months 2005, citing a need to move on with his life.