Udelny Park, Regional cultural heritage park in Vyborgsky District, Saint Petersburg, Russia.

Udelny Park lies in the Vyborgsky District of Saint Petersburg, bounded by Engels Avenue, Kolomyazhsky Avenue, Akkuratova Street and Marka Gallaya Street. It sits on two terraces separated by a 5–6 m ledge, the shore of an ancient sea, cut by ravines with streams. The lower terrace has birch and black alder, the upper terrace holds pine, larch, lime, oak, ash and elm.

The park was founded in 1832 and ranks among the early examples of urban green space development during the Russian Empire era. Its creation was part of efforts to equip Saint Petersburg with modern recreational grounds.

The park's name comes from the Udelny forest school founded here in 1832, where landlords sent serfs to learn forestry. From the 1950s to the 1960s it was the city's only regular gathering place for singers of chastushki, short rhymed folk verses, a tradition that continued into the 21st century. Near the central alley, a fenced 'squirrel enclosure' with bird feeders lets visitors hand-feed birds and squirrels.

The site is straightforward to reach, with several entrances from two main avenues providing access in a well-connected area of the city. Visitors should wear appropriate clothing for local weather conditions, and note that forest paths vary in conditions depending on the season.

Under Peter I this land was set aside to grow ship pines, and a pine said to have been planted by the tsar himself stood by Akkuratov Street near the Spartak stadium until the late 20th century, fenced off; only its stump remains. The upper terrace also holds larches with trunks over a metre across.