Messiah Cathedral, Modern cathedral in Kemayoran, Jakarta, Indonesia

Messiah Cathedral is the front building of the Reformed Millennium Center Indonesia in Kemayoran, Jakarta, designed by Stephen Tong and dedicated in 2008. Its halls hold about 8,000 people: Messiah Hall seats 4,416, John Calvin Hall 1,753, Hosanna Hall 450 and Agape Chamber 300. The complex also houses Aula Simfonia Jakarta, the International Reformed Evangelical Seminary, Sophilia Fine Arts Center and Calvin Institute of Technology.

The cathedral opened in 2008 and was the first church in Indonesia built entirely without foreign funding. This marked a turning point that showed the local religious community could carry out a project of this scale on its own.

The church belongs to the Indonesian Reformed Evangelical Church (GRII), founded by Stephen Tong, who also designed the building. Its main Messiah Hall seats 4,416, with further halls named John Calvin, Hosanna and Agape. GRII marked its 19th anniversary at the inaugural service on 21 September 2008, and the venue has hosted the National Gospel Convention (2013, 2014) and the International Gospel Convention in October 2025.

The complex sits in Kemayoran, Jakarta, and is entered through the Reformed Millennium Center Indonesia, whose church area holds the Messiah Hall, John Calvin Hall and the Athanasius Library. The main hall seats 4,416, with 1,753 in John Calvin Hall, 450 in Hosanna Hall and 300 in the Agape Chamber, so large conventions fill several rooms at once. Check which hall a gathering uses before setting out.

Although the building carries the name cathedral, it has no bishop's throne because the church follows a presbyterian structure that does not include bishops. The word cathedral was chosen to reflect the scale and role of the building as a central gathering place, not to suggest a bishop's authority.