The purpose of this paper is to investigate the Korean public relations practitioners' perceptions toward ethical issues, individual practices, and ethical standards in the context of ethical ideology. The survey was conducted with the Korean public relations practitioners. A 2 (Relativism: High/Low) × 2 (Idealism: High/Low) factorial design was devised for the analysis. The MANOVA results showed that ethical ideology (idealism and relativism) had significant effects on ethical decision-making. Idealistic ideology had a main effect on ethical issues, individual practices, and ethical standards. However, relativistic ideology only affected the decision-making process related to ethical issues. No interaction effects were detected. This study indicated that the individual's ethical ideology could be an important variable in explaining the outcomes of the individual's ethical decision-making among Korean public relations practitioners.