Isaac Parrish (March 1804 – August 9, 1860) was an American lawyer and politician who served two non-consecutive terms as a U.S. Representative from Ohio in the mid-19th century.
Parrish was elected as a Democrat to the Twenty-sixth Congress (March 4, 1839 – March 3, 1841).
He was an unsuccessful candidate for reelection in 1840 to the Twenty-seventh Congress.
Parrish was elected to the Twenty-ninth Congress (March 4, 1845 – March 3, 1847).
He was not a candidate for renomination in 1846.
Later career and death
He resumed the practice of law and his former business pursuits in Sharon.
He was also interested in the real estate business and engaged in freighting by steamboat on the Mississippi River.
He established the Harrison County Flag, published at Calhoun, Iowa.
He died in Parrish City, Iowa, August 9, 1860.
He was interred in Calhoun Cemetery in Calhoun, Iowa.
