Named Knight of the Order of Dannebrog, Her Majesty the Queen of Denmark 1991, recipient Gold medal Society Francaise d'Acoustique, 1995, Lord Rayleigh's Gold medal, London, 1997, The Hartmann Prize, Copenhagen, 1999, Fellow of the Acoustical Society of America, a Life Fellow of the Institute of Electrical and Electronics Engineers.

Chairman mechanical engineering, vice president Academy Technology Sciences, 1989–1993.

Chairman board directors Brunata Aktieselskab, Syd-Tek, Food Tech.

[3] Leif Bjørnø served as chairman or member of the scientific committee for the 2010, 2012, and 2013 Sea Side Security (SSS) Conferences.

[citation needed] He was the chairman mechanical engineering, vice president Academy Technology Sciences, 1989–1993.