Gereja Sion

Sion Church (Gereja Sion, officially Gereja Protestan di Indonesia bagian Barat Jemaat Sion DKI Jakarta, or often contracted to GPIB Jemaat Sion DKI Jakarta) is a historic Protestant church located in Pinangsia Administrative District, Taman Sari, Jakarta, Indonesia, with a structure that dates to the late 17th century. It is the oldest building in Jakarta that still serves its original function and perhaps the oldest, still-active, continuously functioning Protestant church in Asia.

Roots of the church has been traced to 1676, as a modest, impermanent chapel with Portuguese language service for the Mardijker people and Christian population with native or mixed ethnicity of Batavia. Historically, the church was often designated as Portugese Buitenkerk "The Outer Portuguese Church." Due to the growth of congregation, Buitenkerk was rebuilt by the Dutch East Indies Company into a permanent building between 1693 to 1695, the form of which do not change much to this day. After the Indonesian independence, Buitenkerk was officially renamed to GPIB Jemaat Sion or Gereja Sion in 1957. In addition to the overall building, various colonial artefacts are still held in this church such as furniture, memorial boards, and gravestones.