Sian Murray-Williams was born in Scotland but grew up in Wales in a Welsh-speaking family, moving to England in childhood. After obtaining a degree in English Literature, she started work in Washington DC with the Baptist World Alliance before returning to the United Kingdom to work with the Baptist Missionary Society, for part of this time as Director for Missionaries. She then trained for the Baptist ministry at Regent's Park College, Oxford, obtaining a BTh degree. Prior to this she also trained as a spiritual director. Sian and Stuart were married in 2000, after which Sian served as the minister of Littlemore Baptist Church, near Oxford. She is now a tutor at Bristol Baptist College. She is also currently moderator of the Baptist Union's Faith and Unity Department.