The debate surrounding immigration reform to address undocumented Latino immigrants in the United States has been emotionally charged and polarizing. This study's goal was to better understand some of the psychological predictors of attitudes toward undocumented Latino immigrants in the United States, namely, collective identity as an American, group-level narcissism, and their interaction. A university sample (N = 223) completed an online survey measuring attitudes toward undocumented Latino immigrants. As anticipated, we found that, at mean and high (but not low) levels of group narcissism, national in-group identification was a significant predictor of attitudes toward undocumented Latino immigrants. The implications of these findings, limitations, and suggestions for future research are discussed in light of the current debate on undocumented immigration in the United States.