Psychological safety is an important principle in identifying problems and improving patient outcomes. This narrative review highlights five best practices to foster psychological safety in radiology residencies – (1) establish clear goals and educational strategies, (2) build a formal mentoring program, (3) assess psychological safety, (4) advocate for radiologists as educators, and (5) support non-radiology staff. Although the review focuses on radiology residency programs, these strategies can be adapted to any residency program.