This study examined the associations between personality, identity, and protestant fundamentalism (subscales included inerrancy, evangelism, premillennialism, and separatism). 440 college students between the ages of 18 and 29 participated in the study, and self-identified as protestant. A step-wise regression revealed the following findings. Neuroticism was negatively associated with inerrancy, evangelism, and separatism; extroversion was negatively related to separatism; and agreeableness was positively related to inerrancy, evangelisms, and premillennialism. Exploration in depth was positively associated with evangelism, premillennialism, and separatism; identification with commitment was positively related with separatism; and rumination was positively associated with premillennialism, and separatism.