Bäckaby Old Church, Medieval wooden church in Jönköping City Park, Sweden

Backaby Old Church was a wooden structure that stood in a city park and contained medieval timber elements throughout its design. The building showcased traditional construction methods and housed a simple interior typical of northern European churches from that period.

The church dates back to the 1320s and was originally constructed near Vetlanda in its early centuries. It was relocated to the city park in 1902 and operated there for nearly a century before being destroyed by fire in 2000.

The church's name comes from Bäckaby parish, where it stood until 1899. After the move to Jönköping's town park it became a popular venue for weddings and baptisms, and its loss in the 2000 fire was widely felt. A memorial site opened in 2003.

The site is now a memorial area within the park that visitors can explore freely without entrance fees. An information marker on the ground explains what once stood there and helps visitors understand the church's former presence.

The church was the country's second museum church: Bosebo Church, moved to Kulturen in Lund in 1895, came first, and Skansen only got Seglora Church in 1916. Bäckaby's timber was felled around 1326 according to a later dendrochronological dating, although a tithe register records building work in 1584 after an earlier church burned.