Sir Alfred Baring Garrod FRS (3 May 1819 – 28 December 1907) was an English physician.

In 1848, Garrod had discovered an abnormal increase of uric acid in the blood of patients with gout, and was the first to propose lithium as a remedy for the disorder.

He recommended lithium as a treatment for mental illness, and hypothesized that gout could be a cause of mood disorders such as mania and depression.

[2][3] In 1857 Garrod delivered the Goulstonian Lectures to the Royal College of Physicians.

In 1887 he was knighted as "Sir Alfred Baring Garrod", and in 1890 was appointed "Physician Extraordinary" to Queen Victoria.