Archer Allen Phlegar (February 22, 1846 – December 22, 1912) was born at Christiansburg, Virginia.

Phlegar joined the Confederate Army as a private and rose to lieutenant.

When the American Civil War ended, he worked on a farm while also studying law.

In 1870, he was appointed Commonwealth's Attorney for Montgomery County and remained there until he was elected to the Virginia State Senate in 1877.

[1] Phlegar was president of the Virginia Bar Association from 1905 to 1906.