Freilichtbühne Herdringen, Sylvan theater in Arnsberg, Germany.

The Freilichtbühne Herdringen is an outdoor theater in a forest setting near Arnsberg with a stage surrounded by natural woodland. The venue features seating areas arranged to face the stage and hosts productions during the warmer months of the year.

The association behind the theatre grew out of a group of amateur actors from the Catholic rural youth movement, founded shortly after World War II under Pater Theo Thüte. They performed from 1949 at Gasthaus Schmidt's Hof, moving to the Herdringen Schützenhalle in 1953. The first open-air season opened in 1954 with Schiller's Wilhelm Tell, and the audience stand received a roof the following year.

The stage grew out of a group of amateur actors from the Catholic village youth movement, founded shortly after World War II under Father Theo Thüte. Their first major play was "Der verlorene Sohn" by Erich Eckert in 1949, directed by Anton Funke. Since 2004 the clubhouse has also hosted a small winter programme, and Patricia Hoffmann has led the children's and adult theatre since 2015.

The covered grandstand seats about 800, so the open-air stage plays in rain or shine; the 1993 roof rests on a nearly self-supporting glued-laminate structure. Since 2004 the clubhouse has hosted a small winter programme, so the season is not limited to summer. The site lies near Herdringen in the Hochsauerlandkreis, outside Arnsberg's centre, and is run by volunteers.

The 1993 grandstand has a nearly self-supporting glued-laminate roof; before the 2026 season the club built a new restaurant with beer garden, cooling cellar and kiosk for 400,000 euros, much of it in members' own labour.