The 2013 season was the 132nd year in the history of Warwickshire County Cricket Club and their 119th as a first-class county. In 2013, Warwickshire competed in the first division of the County Championship, Group B of the Yorkshire Bank 40 and the Midland/Wales/West Division of the Friends Life t20.
The age given is for the start of Warwickshire's first match of the season, on 13 April 2013.