St John the Baptist Church is an Australian Anglican church in the Canberra suburb of Reid in the Australian Capital Territory. The church is located at the corner of Anzac Parade and Constitution Avenue, adjacent to the Parliamentary Triangle, and is the oldest surviving public building within Canberra's inner city and the oldest church in the Australian Capital Territory. It has been described as a "sanctuary in the city", remaining a small English village-style church even as Australia's capital grew around it. Over time, it became a focal point for Australia's governors-general, politicians, public servants and military leaders, and has hosted royalty on numerous occasions.