Between one-half and three-fourths of children entering foster care exhibit behavioral or social-emotional problems warranting mental health care. This paper, condensed and updated from a technical report prepared for Casey Family Programs in 2005, reviews evidence-based and promising interventions for the most prevalent mental conditions found among children in foster care. This paper also makes several recommendations regarding increasing access to mental health care and effective psychosocial interventions for foster care children. (Contains 2 footnotes.)