FVgg Kastel 06 is a German association football club based in the Mainz-Kastel district of Wiesbaden, Hesse.

[1] FVgg won local honours in 1912 and finished runners-up in the Kreisliga Hessen (I) in 1922.

Despite finishing second in their group, the Kasteler side failed to qualify for the new competition, and they slipped into lower-tier play.

Following World War II, most organizations in the country – including sports and football associations – were ordered dissolved by occupying Allied authorities.

The club returned to the Bezirksoberliga Wiesbaden (VII) in 2007 and won promotion to the Verbandsliga Hessen-Mitte in 2010 where it played until 2013, when it came last and was relegated.