Henry Boyd McKeen (September 18, 1835 – June 3, 1864) was an officer and brigade commander in the union army during the American Civil War.

[8] He records his command's role on the third day of the battle, watching the repulse of the Florida brigade under David Lang.

[2] Col McKeen was back in regimental command at the Battle of Bristoe Station and the Mine Run Campaign.

When BG Alexander S. Webb was wounded at the Battle of Spotsylvania, McKeen was assigned command of his brigade in second division II Corps.

Col McKeen was mortally wounded, shot through the body, in the Battle of Cold Harbor on June 3, 1864, leading a charge.