Ephraim Benoni Hall (August 25, 1822 – January 15, 1898) was the second West Virginia Attorney General. Hall was born on August 25, 1822 in Middletown (now Fairmont) in what is now Marion County (then in Virginia, but later in West Virginia). He read law and was admitted to the bar in 1851 subsequently practiced law in his home county and neighboring counties. In 1861, Ephraim was elected to the Virginia convention in Richmond. On April 17, the convention voted to adopt an ordinance of secession from the Union; Ephraim was one of 58 to voted against secession. When the convention recessed in May 1861, Hall returned to Marion County to survey the people and determined that the majority were Unionist.