|Full name||Johan Gastien|
|Date of birth||25 January 1988|
|Place of birth||Niort, France|
|Height||1.80 m (5 ft 11 in)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 15:50, 25 May 2013 (UTC).
† Appearances (Goals).
Gastien started his career with his home-town club Chamois Niortais and made his debut in the 2–1 victory over Libourne-Saint-Seurin in Ligue 2 on 28 March 2008, coming on as a substitute for Ronan Biger. On 27 March 2010, he scored his first senior goal in Niort's 1–0 victory over Toulouse Fontaines, but was sent off later in the match. Gastien was part of the team that won promotion from the Championnat de France amateur in 2010 and subsequently promotion back to Ligue 2 two years later. In total, he played 140 league matches during six senior seasons with the club, scoring 14 goals.
On 25 May 2013, it was announced that Gastien had agreed a contract with Dijon for the 2013–14 season.
- "Niort 2-1 Libourne". Foot National. 2008-03-28. Retrieved 2009-09-08.
- Mazet, Eric (2010-03-27). "Toulouse Fontaines–Chamois 0–1 (0–0)". Chamois Niortais. Retrieved 2010-03-28.
- Aurélien Gaudriot (25 May 2013). "Johan Gastien, première recrue du Dijon FCO!" (in French). dfco.fr. Retrieved 25 May 2013.
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