The purpose of this study was to explore relationships among anxiety, loneliness, and degree of social skill deficit in a sample of youth with autism spectrum disorders (ASD). Participants (N = 20) were between 7 and 14 years of age, verbal, and had low average or higher assessed intelligence (average IQ = 92 plus or minus 14.41). Youth who self-reported elevated levels of anxiety reported greater feelings of social loneliness. Those participants earning above average total anxiety scores reported significantly more loneliness than those with less anxiety (F = 6.60, p less than 0.05). A significant relationship between parent-reported child withdrawal and depression and social disability also was found. Recommendations for assessment of co-occurring psychiatric problems in youth with ASD are offered.