Gordon Douglas Rowley (1921–2019) was a British botanist and writer specialising in cacti and succulents.

[1] Rowley was the inaugural President of the British Cactus and Succulent Society in 1983 and continued in this role until 2004.

[1] Rowley was author or co-author of over 300 publications including 20 books as well as both popular and scientific articles.

[1] These included: Rowley was awarded Life membership of the National Cactus and Succulent Society in 1981 after becoming a Fellow in 1956.

[1] In 1979 Rowley was awarded the Veitch Memorial Medal by the Royal Horticultural Society for his work with cacti and succulents.