Lord Alistair Hay (born 1955)[1] is an Australian botanist.
He is a former director of the Royal Botanic Garden, Sydney.
[2] He is the heir presumptive to his older brother Charles Hay, 14th Marquess of Tweeddale (born 1947).
[3] The standard author abbreviation A.Hay is used to indicate this person as the author when citing a botanical name.
This article about an Australian botanist is a stub.