Can a non-Muslim be buried in a Muslim cemetery, or can a Muslim be buried in a non-Muslim cemetery?

It is a general practice that a deceased person is buried in a cemetery belonging to people of their own faith. This stems from the fact that each religion has its own unique practices regarding funeral rites. In order to maintain Islamic traditions such as washing and shrouding the deceased, burial, visiting graves, and praying for the dead, and to preserve religious culture in this area, it is important that Muslim graves are located in separate areas from those of people of other faiths. Indeed, throughout history, Muslims have been sensitive about this issue and have taken care to ensure that Muslim graves are not mixed with those of people from other religions.

However, if a non-Muslim living among Muslims dies and there is no cemetery for members of their own faith, and it is not possible to transfer the body elsewhere, the funeral may be buried in a suitable part of the Muslim cemetery. Similarly, if a Muslim dies in a non-Muslim community and there is no Muslim cemetery available, the funeral may be buried in a suitable, separate part of the non-Muslim cemetery. Nevertheless, Muslims living as minorities should strive to have a cemetery allocated for their burials in the countries where they reside.

Source: T.C. Diyanet İşleri Başkanlığı, Din İşleri Yüksek Kurulu