The 1828 Arkansas Territory at-large congressional district special election was held on December 15, 1828, following the death of Henry W. Conway, who had served as the Democratic-Republican Party delegate to Congress from Arkansas Territory since 1823. The position was for the territory's lone to the United States House of Representatives.
Delegate Henry Conway died from a wound sustained in a duel with Robert Crittenden on October 29, 1827.
Following Conway's death, Governor of Arkansas Territory George Izard issued a proclamation calling for a special election on the third Monday in December 1828.
Five candidates announced for the position, with two later withdrawing.