Lennart Ljung is a Swedish professor in the Chair of Control Theory at Linköping University since 1976.
(first degree) in Engineering Physics 1970, and the Ph.D.[4] in Control Theory 1974, all from Lund University.
He is currently the Director of the MOVIII Strategic Research Center at Linköping University.
He has made extensive contributions to control theory, particularly in the area of system identification.
[5] Lennart Ljung is ranked 84 in the world (1st within Sweden) in the field of Engineering and Technology.