Richard H. Tomlinson, OC (c. 1924 – 2018) was a Canadian chemist and philanthropist. He is a founding director of Gennum Corp., a Canadian manufacturer of semiconductors and semiconductor-based products, and he made one of the largest single donations to a Canadian university.

He studied at Bishop's College School, Bishop's University and received a Ph.D. in chemistry in 1948 from McGill University. In 1950, he joined the Department of Chemistry at McMaster University. He retired in 1988. In 2000, he made a donation of Can$64 million to McGill University which will be used to create Fellowships.

In 2003, he was made an Officer of the Order of Canada.

He died on Sunday, January 28, 2018, at the age of 94.^[1]