| William Castling | |
| Constituency Am1: | Townsville |
| Assembly1: | Queensland Legislative |
| Term Start1: | 21 March 1896 |
| Term End1: | 11 March 1899 |
| Predecessor1: | Anthony Ogden |
| Successor1: | Patrick Hanran |
| Alongside1: | Robert Philp |
| Birth Date: | 1838 |
| Birth Place: | Northallerton, Yorkshire, England |
| Death Date: | 7 June 1906 (aged 68) |
| Death Place: | Townsville, Queensland, Australia |
| Restingplace: | West End Cemetery |
| Birthname: | William Joseph Castling |
| Spouse: | Mary Townsend (m.1872 d.1892) |
| Party: | Ministerialist |
| Occupation: | Butcher |
William Joseph Castling (1838 – 7 June 1906) was a member of the Queensland Legislative Assembly.[1]
Castling was born in Northallerton, Yorkshire, the son of Robert Castling and his wife Jane (née Haw) and was educated in Ipswich. He arrived at Dalrymple, Queensland in 1863 and worked the goldfields in the area before purchasing a half share in a Townsville wholesale butchery in 1876 which by 1880 employed 40 people.[1]
On 11 November 1872 he married Mary Townsend in Townsville and together had 5 sons and 4 daughters. Castling drowned in Ross Creek in Townsville in June 1906[1] and was buried in the West End Cemetery.[2]
Castling won the junior position in the two-member seat of Townsville for the Ministerialists at the 1896 Queensland colonial election.[3] He represented the electorate for three years and did not stand at the 1899 Queensland colonial election.[4]