Dr. R.U. Lemieux received numerous awards and honours for his work in chemistry:
* Induction into the Royal Society of Canada (1954)
* C.S. Hudson Award of the American Chemical Society (1966)
* Became the first western Canadian to be elected a fellow of the Royal Society (England) (1967)
* Appointed Officer of the Order of Canada (1968)
* Haworth Award and Medal (1983)
* The Tishler Award, Harvard University (1983)
* Gairdner Foundation International Award (1985)
* Made Honorary Doctor of Philosophy from the University of Stockholm (1988)
* Induction into the Alberta Order of Excellence (1990)
* King Faisal International Prize for Science (first Canadian) (1990)
* NSERC Gold Medal in Science (1991)
* Albert Einstein World Award of Science (1992)
* Made Companion of the Order of Canada (1994)
* Wolf Prize in Chemistry (1999)