George Hilaro Barlow

George Hilaro Barlow (1806–1866) was a British physician. He was a Fellow of the Royal College of Physicians, the first editor of Guy's Hospital Reports,

The son of a clergyman, he was named after Sir George Barlow, 1st Baronet. Disliking life in the Royal Navy, he went to Trinity College, Cambridge, where he read arts and medicine. Gaining his B.A. there in 1829, he went to Guy's the following year and furthered his formal studies in medicine.

Barlow married Lydia, daughter of Stephen Babington, in 1839. Barlow was a contemporary and colleague of both Thomas Addison, and Henry Marshall Hughes, to whom he dedicated his Manual.

He promoted, and became president of, the Clinical Reports Society. He was described as highly analytical, considering many contending possibilities for every diagnosis. He died at Sydenham.