Galusha Aaron Grow (August 31, 1823 – March 31, 1907) was an American politician, lawyer, writer and businessman, who served as 24th Speaker of the U.S. House of Representatives from 1861 to 1863.

Elected speaker for the 37th Congress, Grow presided over the House during the initial years of the American Civil War.

During the 35th United States Congress, on February 5, 1858, he was physically attacked by Democrat Laurence M. Keitt in the House chambers, leading to a brawl between northerners and southerners.

A large brawl involving approximately fifty representatives erupted on the House floor, ending only when a missed punch from Rep. Cadwallader Washburn upended the hairpiece of Rep. William Barksdale.

When the next Congress convened in December 1859, he was one of 90 congressmen to receive votes during the two-month-long 44-ballot speaker election,[7] dropping out following the first ballot.

[8] On December 29, 1859, North Carolina Congressman Lawrence O'Bryan Branch challenged Galusha Grow to a duel after the two exchanged insults on the House Floor.

Grow, a supporter of the Radical Republicans, was defeated in his re-election bid in 1862, becoming the second sitting House Speaker in a row to lose his seat.

Grow: Father of the Homestead Law, was written by James T. Du Bois and Gertrude S. Mathews and published by Houghton Mifflin in 1917.