Eulachhalle is an arena in Winterthur, Switzerland. It is primarily used for team handball and is the home arena of Pfadi Winterthur and Yellow Winterthur. Eulachhalle holds 2,300 people.
In 2008, the arena was the host of the finals of the men's and women's EuroFloorball Cup final rounds. The Arena has also twice been the host of the UCI Indoor Cycling World Championships, in 1997 and 2007. At the 2007 world championships there was a record number of 3,280 spectators in the arena.
The Eulachhalle also holds regular trade fairs and concerts.