| Honorific Prefix: | The Right Reverend |
| William Turner | |
| Bishop of Galloway | |
| Church: | Roman Catholic Church |
| Diocese: | Galloway |
| Appointed: | 16 June 1893 |
| Term End: | 19 January 1914 |
| Predecessor: | John McLachlan |
| Successor: | James McCarthy |
| Ordination: | 26 April 1868 |
| Ordained By: | Pietro de Villanova Castellacci |
| Consecration: | 25 July 1893 |
| Consecrated By: | Angus MacDonald |
| Birth Date: | 12 December 1844 |
| Birth Place: | Aberdeen, Aberdeenshire, Scotland |
| Death Date: | 19 January 1914 (aged 69) |
| Death Place: | Dumfries, Dumfries-shire, Scotland |
| Motto: | Fortitudo mea Dominus |
| Education: | St Mary's College, Blairs |
| Alma Mater: | Pontifical Scots College |
William Turner (12 December 1844 – 19 January 1914) was a British Roman Catholic clergyman who served as the Bishop of Galloway from 1893 to 1914.
He was born in Aberdeen, United Kingdom on 12 December 1844. He entered Blairs College in 1858 and completed his studies at the Scots College, Rome. He was ordained to the priesthood on 26 April 1868.[1]
He was appointed the Bishop of the Diocese of Galloway by the Holy See on 16 June 1893, and consecrated to the Episcopate on 25 July 1893. The principal consecrator was Archbishop Angus MacDonald of St Andrews and Edinburgh, and the principal co-consecrators were Bishop Hugh MacDonald of Aberdeen and Bishop James August Smith of Dunkeld (later Archbishop of St Andrews and Edinburgh).
He died in office on 19 January 1914, aged 69.