Botanischer Garten am Kaiserberg, Botanical garden in Duisburg, Germany.

The Botanischer Garten am Kaiserberg is a garden in Duisburg with plants from the local area and distant regions. The space features different plant families arranged in separate sections throughout the grounds.

The Duissern beautification society laid out the garden in 1890 as a nature-study park; by 1892 it covered about two hectares, with a water-lily basin and an Alpine garden. From 1893 seeds and plant parts were exchanged with other botanical gardens and an annual seed catalogue was issued. Largely destroyed in the Second World War, it was used as allotment land and rebuilt by 1956.

The garden is also called Botanischer Garten Schweizer Straße, after its main entrance on that street and its Alpinum. Since 1893 it has exchanged seeds and plant parts with other botanical gardens and published an annual seed catalogue. Today concerts, readings, art actions and botanical guided tours take place in the grounds.

The main entrance is on Schweizer Straße, which is why the garden is also called Botanischer Garten Schweizer Straße; it lies at the foot of the Kaiserberg near Duisburg Zoo. Entry is free and the grounds stay open all year, including during the two-phase rebuilding begun in 2012. The redesign of the main entrance is largely finished.

The garden maintains specialized collections of Alpine plants, medicinal herbs, and other botanical categories in dedicated sections. Many visitors focus only on main pathways and miss these themed areas entirely.