Sister Boniface Mysteries is a British detective period television series, created by Jude Tindall, which is produced by BBC Studios and BritBox. It is a spin-off of Father Brown, as the Sister Boniface character was introduced in a Father Brown episode (Series 1, Episode 6: "The Bride of Christ"). A 10-episode first series premiered on 8 February 2022, on the BritBox streaming service, and released in the UK on the UKTV Drama channel later in 2022. Sister Boniface Mysteries has been renewed for a second series.