The Office of Public Relations deals with external and internal communication alike. The public relations staff researches information about teaching, research and higher education and publishes it for use by the media as well as the university community. Information is published and disseminated both in the context of broader public relations strategies and as one-time communications.

The office's cooperation with the media includes preparing and hosting press conferences and supporting the university's faculties with their public relations efforts. Public Relations also organizes attention-grabbing events such as anniversary celebrations, university open house days or the Engineering Night. What is more, since winter term 2004/2005, the office's team has been collaborating with the Appointee for Cultural Events at RheinMain University and the Department of Cultural Affairs of the City of Wiesbaden to put together the Young Authors' Lecture Series on Poetics.

Public Relations is also in charge of university publications such as the journal. Another of the office's tasks is the design and implementation of the university's overall corporate identity.

Due to the high visibility and importance of the university's web presence, the office also structures the administration's communications on the website and closely cooperates with the webmaster and the faculties on website-related issues. Since March 2008, web users can subscribe to a free electronic newsletter of RheinMain University.