William Miller Ord, FRCP (23 September 1834 – 14 May 1902) was a British medical scientist.

He was a surgeon at St. Thomas Hospital in London, where he worked for 50 years.

He received his medical education at St Thomas' Hospital, where he entered in 1852, and at London University.

He became a member of the Royal College of Surgeons in 1855, and a member of the Royal College of Physicians in 1869 (later elected a Fellow in 1875).

[3] Ord died at The Hall, in Salisbury, residence of his son, on 14 May 1902.