William Sewell (1781–1853) was the second principal of the London Veterinary College, succeeding Edward Coleman who died in 1839.
In 1815 and 1816, he was sent by the college governors to the European continent to visit veterinary schools.
His biographers described Sewell as a reserved man, unsociable, hesitating, and unpopular with the students and the profession.
Sewell gradually stopped teaching, and became the director of the London Veterinary School, its secretary, and its resident governor.
[1] He died in June 1853 at the age of 72 and was buried on the western side of Highgate Cemetery (plot no.386).