| Alvin William Nienow | |
| Birth Date: | 1937 |
| Death Date: | 2022 |
| Alma Mater: | University College London |
Alvin William Nienow was a British chemical engineer. He was emeritus professor of biochemical engineering at the University of Birmingham, where he was also director of the School of Chemical Engineering between 1989 and 1999. He was a fellow of both the Institution of Chemical Engineers and the Royal Academy of Engineering, and an honorary professor of Loughborough University. He was a visiting professor there and at Aston University. According to Scopus he has an h-index of 64.