Hugh Anderson Dinsmore (December 24, 1850 – May 2, 1930) was an American lawyer and politician who served six terms as and a U.S. Representative from Arkansas from 1893 to 1905.

He resigned in 1874, when he was admitted to the bar, and the following year, he moved to Fayetteville, where he entered into a law partnership with David Walker.

In January 1887, Dinsmore was appointed by President Cleveland as Minister Resident and consul general to the Kingdom of Korea and served until May 25, 1890.

[2] After he resumed the practice of law in Fayetteville, Arkansas, Dinsmore was elected as a Democrat to the Fifty-third and to the five succeeding Congresses.

He resumed the practice of law in Fayetteville, Arkansas, and in later years devoted most of his time to the management of his farming interests.