Charles White Blair (February 5, 1829 – August 20, 1899) was a lawyer, and Union Army officer who served in three different regiments during the American Civil War.

At the outbreak of the war, he was commissioned a captain in the 2nd Kansas Volunteer Infantry Regiment and fought at the battle of Wilson's Creek.

[2] Blair personally accompanied this detachment to the headquarters of James G. Blunt's Provisional Cavalry Division of the Army of the Border.

The 3rd Brigade was primarily composed of Kansas State Militia regiments of Brigadier General William H. M. Fishback's command.

At the battle of the Big Blue River Blair's brigade was attached to the Kansas Militia Division under General George Deitzler.

As the battle raged back and forth Curtis arrived at the front with Blair's brigade and directed it into position perpendicular to the Kansas/Missouri state line.

The attack bogged down, but at this critical moment Curtis personally led Blair's 9th Wisconsin Battery through a gulch which opened fire on the Confederate flank.

Blair's brigade formed in the center of the Union army as it made a general advance against the faltering Confederate line.