Stadtpark, Urban park in central Mainz, Germany

Stadtpark is an urban green space in central Mainz featuring walking paths, open lawns, and mature trees distributed throughout its grounds between the old town and upper town areas. The park is crossed by multiple pathways and includes a rose garden with thousands of plants plus seating areas scattered throughout.

The site held the Lustschloss Favorite, a pleasure palace of the prince-electors of Mainz, until its destruction in the 1793 siege; its stone remains were later reused for building work in Kastel. From 1819 to 1825 the landscape architect Peter Wolf designed a New Anlage in the style of an English landscape park for the then unused ground between Fort Kartaus and the Rhine. In the 1850s parts were cut off for the Ludwigsbahn railway and the first gasworks, and in 1888 the Siesmayer brothers gave the park its present form.

The rose garden was laid out in 1925 by garden architect August Waltenberg for the millennium celebration of the Rhineland and was the first rose show of the German rose friends' association. It covers 9,500 square metres with about 7,500 roses, and during the Mainzer Weinmarkt an artists' market and a second-hand book market are held here.

The park is easily reached on foot from downtown Mainz and offers numerous benches for resting and wide pathways for walking. Visitors should know that the grounds have multiple entry points and work well for both brief visits and longer outings.

Circular tree plantings in the park mark the spot where the notorious outlaw Schinderhannes was executed by guillotine in 1803. This historic location is recognizable to visitors who explore the grounds.