|Irish name||Caoimhín Ó hEidhin|
28 May 1986 |
|Height||6 ft 0 in (1.83 m)|
|*Inter County team apps and scores correct as of 15:00, 9 Sept 2012.|
Hynes made his first appearance for the team during the 2009 championship and eventually established himself as the first-choice full-back. An All-Ireland-winning captain in the under-21 grade, he has won Leinster and National Hurling League medals at senior level.
At club level Hynes plays with the Sarsfields senior hurling team, and in the Galway Senior Hurling Championship, Hynes won his first senior county winners medal on 22 November in the 2015 county final v Craughwell at Pearse Stadium
- Galway Senior Hurling Championship (1): 2015
- Leinster Senior Hurling Championship (1): 2012
- National Hurling League (1): 2010
- Walsh Cup (1): 2010
- All-Ireland Under-21 Hurling Championship (1): 2007 [c]
- All-Ireland Minor Hurling Championship (1): 2004
- "Galway hand Hynes his championship debut". Irish Times. 27 May 2009. Retrieved 9 July 2012.
- "Galway land historic Leinster win". RTÉ Sport. 8 July 2012. Retrieved 9 July 2012.
- "Cooney clan rise to task for Sarsfields one more time". Irish Examiner. 23 November 2015. Retrieved 29 January 2016.
|All-Ireland Under-21 Hurling Final