William Williams FRSE PRCVS (1832–1900) was a Welsh veterinary surgeon who served as principal of the Dick Veterinary College in Edinburgh (1867–73) and as president of the Royal College of Veterinary Surgeons (1879). He was the founder and principal of the rival New Veterinary College (1873–1904), originally housed in Gayfield House, Edinburgh.
He wrote several standard works on veterinary science.
Williams was born in Bontnewydd near St Asaph, north Wales, in 1832. As with many early vets, he appears to have had a background in farriery.
He enrolled in the new Dick Veterinary College in Edinburgh under William Dick in 1855. He qualified MRCVS in 1857, and set up a veterinary practice in Bradford, Yorkshire, England. In 1867 he returned to his alma mater in Edinburgh to become third principal of the Dick Veterinary College, replacing the brief principalship of Colonel James H. B. Hallen FRSE who was urgently called to India to address an outbreak of cattle plague.
Walter George Burnett Dickinson FRSE was amongst his many students.
In 1868 Williams was elected a Fellow of the Royal Society of Edinburgh his proposer being Sir William Turner.
In January 1869 he and fellow veterinary professor Allen Dalzell were sued in the Scottish Court of session by a former colleague, John Adam McBride, leading to a great deal of ill-will in the college.