Sister Parish was an American interior decorator and socialite. She was the first practitioner brought in to decorate the Kennedy White House, a position soon entrusted to French interior decorator Stéphane Boudin. Despite Boudin's growing influence, Parish's influence can still be seen at the White House, particularly in the Yellow Oval Room.

Interior design is the art and science of enhancing the interior of a building to achieve a healthier and more aesthetically pleasing environment for the people using the space. With a keen eye for detail and a creative flair, an interior designer is someone who plans, researches, coordinates, and manages such enhancement projects. Interior design is a multifaceted profession that includes conceptual development, space planning, site inspections, programming, research, communicating with the stakeholders of a project, construction management, and execution of the design.