| Club: | Guingamp |
| Season: | 2014–15 |
| Stadium: | Stade du Roudourou |
| Mgrtitle: | Manager |
| Manager: | Jocelyn Gourvennec |
| Chairman: | Bertrand Desplat |
| League: | Ligue 1 |
| League Result: | 10th |
| Cup1: | Coupe de France |
| Cup1 Result: | Semi-finals |
| Cup2: | Coupe de la Ligue |
| Cup2 Result: | Quarter-finals |
| Cup3: | Trophée des Champions |
| Cup3 Result: | Runners-up |
| Cup4: | UEFA Europa League |
| Cup4 Result: | Round of 32 |
| League Topscorer: | Claudio Beauvue (17) |
| Season Topscorer: | Claudio Beauvue (27) |
| Highest Attendance: | 17,636 vs Paris Saint-Germain (14 December 2014) |
| Lowest Attendance: | 5,519 vs Fiorentina (19 February 2015) |
| Prevseason: | 2013–14 |
| Nextseason: | 2015–16 |
| Website: | http://www.eaguingamp.com/ |
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The 2014–15 En Avant de Guingamp season is the 103rd professional season of the club since its creation in 1912.
French teams are limited to four players without EU citizenship. Hence, the squad list includes only the principal nationality of each player; several non-European players on the squad have dual citizenship with an EU country. Also, players from the ACP countries—countries in Africa, the Caribbean, and the Pacific that are signatories to the Cotonou Agreement—are not counted against non-EU quotas due to the Kolpak ruling.
See main article: 2014 Trophée des Champions.
See main article: 2014–15 Ligue 1.
See main article: 2014–15 Coupe de la Ligue.
See main article: 2014–15 Coupe de France.
See main article: 2014–15 UEFA Europa League.
See main article: 2014–15 UEFA Europa League knockout phase.