The Church of St John the Evangelist, better known as the Afghan Church (Marathi: अफ़ग़ान चर्च) is a Presbyterian Church in South Mumbai, India, built by the British to commemorate the dead of the disastrous defeat in the First Afghan War of 1838. The church is located in Navy Nagar in the Colaba area of Mumbai (Bombay).
As well as British soldiers, it also commemorates different Indian regiments, such as the Bombay Army, the Madras Army, and Ranjit Singh's army from Lahore. Records also mention that only one person, one Surgeon William Brydon - a medical officer - out of 16,000 men, returned safely to Jalalabad to tell the tale of a war in which the British suffered their heaviest defeat yet.