Mounce Gore Butler was an American politician and a member of the United States House of Representatives for the 4th congressional district of Tennessee.
He was born on May 11, 1849 in Gainesboro, Tennessee in Jackson County. He attended the common schools, Old Philomath Academy, and the law department of Cumberland University in Lebanon, Tennessee. He was admitted to the bar in 1871 and commenced practice in the area of Gainesboro.
Mounce Butler was a delegete to all Democratic state conventions from 1872 to 1916. From 1894 to 1902, he was the attorney general for the fifth judicial circuit of Tennessee. He was elected as a Democrat to the Fifty-ninth Congress, and was an unsuccessful candidate for renomination in 1906. He served from March 4, 1905 to March 3, 1907. He resumed the practice of his profession in Gainesboro, Tennessee in Jackson County and died there on February 13, 1917. He was interred in Gainesboro Cemetery.