The Norwegian Institute of Technology established the Lars Onsager Lecture and The Lars Onsager Professorship in 1993 to award outstanding scientists in the scientific fields of  Chemistry, Physics and Mathematics. In 1997 his sons and daughter donated his scientific works and professional belongings to NTNU (before 1996 NTH) in Trondheim, Norway as his Alma Mater. These are now organized as "The Lars Onsager Archive" at the Gunnerus Library in Trondheim.