Online health information is a critical resource for health consumers. Nursing professionals need to be eHealth literate to support patients and their families. The purpose of the study was to explore eHealth literacy skills among undergraduate nursing students in the U.S. and South Korea. One hundred and sixty-nine undergraduate nursing students in two universities, one in the southern area of the U.S. and one in the eastern area of South Korea, participated. Participants were asked to complete the eHealth Literacy Scale. The majority of participants perceived that the Internet is a useful or very useful tool in helping them make health-related decisions. The participants either agreed or strongly agreed with the 7 items of the eHealth literacy scale except an item such as they can call high to low quality of online health information. The U.S students have higher mean scores of all eHealth literacy items than students of South Korea.