Helge Zimdal (born Helge Zimdahl, April 27, 1903, Alingsås – October 3, 2001, Hovås, Gothenburg) was a Swedish architect and professor of architecture, best known for his extensive contribution to educational architecture in Sweden. His work played a significant role in shaping the physical environment of postwar Swedish schooling, combining functional clarity with social responsibility.

Helge Zimdal was trained as an architect during a period in which modernism, rational planning, and welfare-state ideals increasingly defined Scandinavian architecture. Throughout his career, he became particularly associated with the design of school buildings, a field in which he developed deep expertise. His educational projects were characterized by thoughtful spatial organization, attention to light and scale, and a strong focus on the everyday needs of students and teachers. Zimdal approached school architecture not merely as a technical task, but as a civic responsibility, believing that well-designed learning environments could positively influence education and social development.

In addition to his architectural practice, Zimdal served as a professor of architecture at Chalmers University of Technology in Gothenburg. In this academic role, he influenced generations of architects, contributing to architectural education through both teaching and research. His dual position as practitioner and educator allowed him to bridge theory and practice, reinforcing the principles of functionalism and human-centered design within Swedish architectural culture.

Today, Helge Zimdal is remembered as an important figure in 20th-century Swedish architecture, particularly in the field of school and public building design. His legacy endures through the many educational buildings he realized and through his lasting impact on architectural education at Chalmers University of Technology.