Thomas Bryant Cotton is an American politician, attorney, and former military officer serving as the junior United States senator from Arkansas since 2015. A member of the Republican Party, he served in the U.S. House of Representatives from 2013 to 2015.

The 2014 United States Senate election in Arkansas was held on November 4, 2014, to elect a member of the United States Senate to represent the state of Arkansas, concurrently with the election of the Governor of Arkansas, as well as other elections to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections.