Harbin Children's Park, Public park in Nangang District, Harbin, China.

Harbin Children's Park is a recreational area in Nangang with playgrounds, green spaces, and walking paths throughout its grounds. The layout includes open lawns, planted areas, and several play zones distributed across the site.

The park began in 1925 as a nursery of the Chinese Eastern Railway beside the Majiagou River. Under Japanese occupation it was turned into the Harbin Botanical Garden; after Japan's surrender the China Changchun Railway administration took it over as Railway Garden, and in 1953 the city government renamed it Nangang Park. On 1 June 1956 China's first child-run children's railway opened here and the park took its present name.

The park's name comes from the children's railway that opened on 1 June 1956, the first in China run by children themselves: young pioneers aged 12 to 15 served as drivers and conductors. The line still circles the park, and the former Beijing station building now houses the Children's Railway Memory Museum.

The park is a narrow 1,000 m strip between Gogol Street (west gate) and Dacheng Street (east gate), with a south gate on the Majiagou River and a north gate at Longjiang Street; since 2019 twelve entrances open onto it. A 1,865 m coloured loop path circles the whole grounds. The children's railway runs about 12 minutes per circuit at 30 km/h, and since 2025 the sixth-generation train has heated carriages for winter operation.

The children's railway's "Beijing Station" was rebuilt in 1997 as a scaled-down copy of the real Beijing railway station building, covering 350 square metres with 1,200 square metres of floor space. In 2019 it became the Children's Railway Memory Museum.