Sir William John Clarke, 1st Baronet, was an Australian businessman and philanthropist in the Colony of Victoria. He was raised to the baronetage in 1882, the first Victorian to be granted a hereditary honour.
- Occupation
- politician, farmer, philanthropist
- Position held
- Member of the Victorian Legislative Council
- Citizenship
- Australia
- Born
- March 31, 1831, 1831
- Died
- May 15, 1897