Wildpark Roggenhausen, Wildlife park and zoo in Aarau, Switzerland

Wildpark Roggenhausen is a wildlife park mostly on Aarau's municipal territory, with a smaller part in Eppenberg-Wöschnau, in the small Roggenhausental valley about 3 km southwest of Aarau. It keeps native species including ibex, deer, wild boar and marmots, and also has a restaurant with terrace, a children's playground and a summer self-service kiosk.

Founded in 1903, the park is maintained by the city of Aarau (Ortsbürgergemeinde) together with sponsors and member contributions. In 1931 the former fire pond became the duck pond. A wild boar enclosure opened in 1970 and an ibex enclosure in 1978; for the 2003 centenary, visitor platforms were built at the deer and mouflon enclosures and a nature trail laid out from the car park.

The park offers chances to watch native animals like ibex and deer roaming in open enclosures as they would in the wild. Walking through different sections helps visitors understand how these creatures fit into the Swiss landscape.

The park is free to enter year-round and sells appropriate animal feed on site along with restaurants and playgrounds for families. Paths are well-marked and wind through different sections, letting visitors explore at their own pace.

The Spycher near the ibex enclosure on the Älpli dates from 1642 and stands beside a picnic area with fire pits. The park also holds an arboretum of rare standard fruit and ornamental trees, and most of the grounds lie in Aarau, with only a smaller part in Eppenberg-Wöschnau.