| Current position | |
|---|---|
| Title | Assistant coach |
| Team | Union |
| Conference | ECAC Hockey |
| Biographical details | |
| Born | July 6, 1980 South Boston, Massachusetts, USA |
| Alma mater | University of Maine |
| Playing career | |
| 2001–2005 | Maine |
| 2004–2005 | Alaska Aces |
| 2005–2006 | Florida Everblades |
| 2006–2007 | Rocky Mountain Rage |
| 2006–2008 | Austin Ice Bats |
| 2008–2009 | Huntsville Havoc |
| 2009–2010 | Flint Generals |
| 2010–2011 | Eaters Limburg |
| 2011–2012 | Evansville Icemen |
| Position(s) | Forward |
| Coaching career (HC unless noted) | |
| 2013–2014 | Union (volunteer asst.) |
| 2014–2015 | Youngstown Phantoms (asst.) |
| 2015–2016 | Mercyhurst (asst.) |
| 2016–2022 | Union (asst.) |
| 2022 | Union (interim) |
| 2022–Present | Union (asst.) |
| Head coaching record | |
| Overall | 8–8–1 .500 |
John Ronan is an American ice hockey coach and former forward, who is currently an assistant coach for the Union Garnet Chargers.