Campo de Montiel is a comarca (county, with no administrative role) in Castile-La Mancha, Spain.

Campo de Montiel is a Spanish region, integrated historically and geographically in La Mancha (specifically in the Lower Mancha), one to whose former province it belonged.

Both provinces are located in the autonomous community of Castilla-La Mancha.

This region originated when the Order of Santiago received it as lordship, which founded three towns: Torre de Juan Abad, Alhambra and Montiel, each with numerous villages that later became independent.

In the sixteenth century, King Felipe II consecrated this region by placing the county capital in Villanueva de los Infantes, as it was and is the geographic center of Campo de Montiel.