What is a group of Interns called?

A group of interns is commonly called a Shift.

A collective noun for interns can be referred to as a "cadre" or a "group" of interns. Just like any collective noun, these terms serve to gather and define a specific group of interns working together or undergoing training within an organization or industry. The term "cadre" emphasizes the cohesive nature of the interns, showcasing their solidarity and shared purpose towards a common goal. On the other hand, the term "group" is a more generic and widely-used noun referring to any collection of individuals, highlighting the presence of interns working collectively in this instance. Both terms capture the essence of collaboration and learning that takes place among interns, which fosters a supportive and engaging environment conducive to mutual growth and development in their professional pursuits.